[RRE]notes and recommendations

From: Phil Agre (pagreat_private)
Date: Sat Dec 29 2001 - 15:28:14 PST

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    Some notes about transaction costs, digital libraries, peer-to-peer
    computing, organized irrationality, and scientism.
    
    **
    
    In response to my arguments against automatic face recognition in
    public places <http://dlis.gseis.ucla.edu/people/pagre/bar-code.html>
    some people have objected that I am using an invalid slippery-slope
    argument.  Here it is:
    
      (3) Even if the only people in the database today are criminals,
      the forces pushing us down a slippery slope of ever-expanding
      databases are nearly overwhelming.  Once the system is established
      and working, why don't we add alleged troublemakers who have been
      ejected from businesses in the past but have never been convicted
      of crimes?  Then we could add people with criminal records who have
      served their time, people who have been convicted of minor offenses
      such as shoplifting, [etc].  And once those people are added, it is
      then a short step to add many other categories of people as well.
    
    One might ask why this argument is valid when I have objected to
    claims that anti-spam legislation would lead to broader restrictions
    on speech <http://www.newsbytes.com/news/01/168401.html>.  Here is
    the difference.  In the case of automatic face recognition in public
    places, the current debate is about whether to install a complex
    infrastructure of cameras, networks, databases of facial images,
    people trained to look at candidate face matches, etc.  Let's say
    that we install that elaborate infrastructure for the ostensible
    purpose of finding terrorists.  Then, having done all that, the
    additional step of adding other faces to the database to find more
    categories of people is trivial.  Taking the first step, in other
    words, dramatically lowers the barriers to taking the subsequent
    steps.  That's what makes it a slippery slope.  In the case of spam
    legislation, by contrast, the proposed measures do not facilitate
    the imagined subsequent measures in any way.  They do not make those
    subsequent measures technically easier, and they do not provide courts
    with legal precedents for them.  So the face recognition argument is
    valid and the spam law argument is not.
    
    **
    
    Organizational boundaries and the rising tide of standards.
    
    Here is a new way to understand transaction costs.  Coase's theory
    of transaction costs, you may recall, explains a mystery: if markets
    are the most efficient way to organize production, why do capitalist
    economies give rise to the large command-and-control hierarchies
    called corporations?  The reason, Coase argues, is that market
    mechanisms are not costless.  In fact the costs of transacting
    business in the market are substantial, so it is often cheaper to
    organize some activities in hierarchies.  Organizational boundaries
    are then determined by the balance between transaction costs and
    organizing costs.  If transaction costs go down, then everything
    being equal organizations break up, and if organizing costs go down,
    then everything being equal organizations expand.  The problem is that
    new technologies tend to affect both transaction costs and organizing
    costs, so that everything is rarely equal.  As a result, the theory
    is often thought to have few testable consequences, though that
    hasn't stopped many theorists from deriving such consequences anyway
    by making unreasonable assumptions.
    
    The new way to understand transaction costs starts with an observation
    and an analogy.  The observation is that business is fundamentally a
    matter of figuring out what to standardize and what to customize.  The
    two imperatives conflict, since standardization lowers costs through
    economies of scale and customization makes products more appealing
    to specific customers.  Because customers are diverse, all businesses
    must continually search for the optimal trade-off.  Cyber gurus often
    say that information technology has rendered the age of standardization
    obsolete, and that new products are thoroughly customized.  But that
    can't be right.  Standardization is still massively with us, and in
    many areas it is even accelerating.  The cyber gurus do have a point,
    though, and it is worth trying to articulate the point more precisely.
    Businesses are always looking for the optimal dividing-line between
    standardization and customization; that dividing-line can be drawn
    in many ways, and new technologies multiply the ways that the line
    can be drawn.  You can, for example, standardize the mechanisms by
    which customized products are specified, manufactured, and distributed.
    You can settle on three standards for three different market segments.
    You can standardize some aspects of a product but not others.  You can
    assemble a broad family of products from standardized modular components.
    And so on.  Standardization and customization are both spreading.
    
    That's the observation.  The analogy starts from Bill Mitchell's
    argument about the geographic consequences of pervasive networking.
    All of us, Mitchell says, are bound geographically to various things:
    family, work, recreation, community, climate, culture, and so on.
    Different people are bound to different things, and we experience
    different bonds of different strengths to different things in
    different places.  To reconcile these conflicting bonds we may travel
    regularly, or we may move at certain points in our lives when the
    balance changes among the strengths of the various bonds.  Computer
    networks and the general trend toward digitization, however, loosen
    some geographical bonds.  We can use cheap communication technologies
    to stay in more continual contact with our families or customers,
    so we have less need to be geographically close to them.  We can
    obtain access to digital libraries at a distance, so we have less
    need (relatively speaking) to live near a physical library.  Cheap
    air travel, itself greatly facilitated by computing, also loosens
    geographic bonds, though perhaps that will change now.  In any case,
    as the bonds change their strengths, it follows that people and things
    will rearrange themselves around the landscape.  People will reckon
    the strengths of the bonds that attract them to one place or another,
    and they will relocate accordingly.  The point is not that people
    will become totally unbound, but that the bonds that computer networks
    do not loosen will become relatively more important in determining
    settlement and travel patterns.
    
    The analogy I want to draw is between geographic and organizational
    bonds.  Just as people are geographically bound to certain people,
    places, and things, likewise different activities are bound together
    within the same organization.  Of course, the activities could
    still be conducted in separate organizations, but putting them in
    the same command structure helps to coordinate them.  The greater
    the need for coordination, the greater the force the binds them
    into the same organization.  No force operates in isolation, though,
    and every activity will be subject to numerous conflicting forces.
    The boundaries of organizations will be determined by the resultant
    of these forces, just as geographic settlement patterns are determined
    by the forces that Mitchell describes.  As computer networks loosen
    some bonds, it stands to reason that activities will group themselves
    into different organizational boundaries, with some coordination
    arrangements that were formerly conducted through command-and-control
    happening instead through the market, and vice versa.
    
    Let us put the observation and the analogy together into one story.
    Organizations are constantly searching for the right dividing-line
    between standardization and customization.  Every organization is
    conducting this search simultaneously, and different organizations are
    likely to come upon similar answers.  That is one reason why standards
    emerge across multiple organizations and even multiple industries.
    Conforming to industry standards is often valuable in itself, for
    example because of the ready supply of people who can work with the
    standard, and so new standards are likely to emerge from this process
    and take on a life of their own.  These include product standards,
    but just as importantly they include process standards, accounting
    standards, evaluation and testing standards, training standards,
    and so on.  Some of these standards will have official ISO standards
    numbers and others will be written into law, but many will be
    unofficial, even unrecognized, as employees carry solutions with them
    that have worked well in other jobs.
    
    The result of all this is a rising tide of standards, most of which
    will not be visible to customers.  The great paradox of standards,
    familiar to anyone who understands the Internet, is that standards and
    customization are not in conflict.  To the contrary, a standard often
    supplies a platform or building-block from which customized products
    can be made.  So long as companies have identified accurately where
    the dividing-line between standardization and customization should
    fall, and so long as this dividing-line stands still long enough
    for new standards to actually take hold, the rising tide of standards
    will facilitate greater outward diversity even as it reduces diversity
    behind the scenes.
    
    Think of the rising tide of standards as the accretion of successive
    layers.  In the old days, every organization was its own stovepipe,
    cooking its own custom solution to every problem.  As standards become
    established, the bottommost reaches of the stovepipe are removed
    and the rest is moved onto the standards.  As the sedimentation of
    standards grows deeper, the stovepipes get shorter and shorter.  This
    is important because the binding force of different activities within
    an organization is determined in part by the number of nonstandard
    components they have.  Industry standards effectively displace the
    effort of coordination, moving it from the firm level to the industry
    level, or to a monopoly that supplies the standard.  As coordination
    becomes easier, binding forces are reduced.  It does not follow that
    organizations fragment into separate pieces that are not bound to
    one another at all.  It does follow, however, that they are likely
    to regroup.  Some organizations will specialize in supplying a single
    standard, thus becoming a focused monopoly that provides one thin
    slice through industry as a whole (see Lowell Bryan et al, Race for
    the World, Harvard Business School Press, 1999).  Other organizations
    will specialize in managing the boundary between standards and
    customization.  Because customization is hard to manage on a large
    scale, these latter organizations will be major consumers of standards
    produced by others.
    
    This explanation of transaction costs is still very abstract.
    It depends heavily on an unexamined notion of the optimal boundary
    between standardization and specialization -- a boundary that takes
    very different forms in different industries.  It also, like most
    theories of organizations, presupposes that the forces it describes
    are the only forces in operation.  That will rarely be the case.
    But at least it has some heuristic value.  By posing the question
    of the exact nature of the trade-off between standardization and
    specialization, it sets in motion in any particular case an inquiry
    that in my experience is quite productive.
    
    **
    
    Digital libraries and the nature of texts.
    
    Let me suggest an analogy.  In his analysis of social consciousness
    under capitalism, Marx complained that people are led into a certain
    mistake: treating commodities as if they were things unto themselves,
    when in fact they are embedded in webs of relationships among people.
    When commodities appear in the marketplace, they are clean and
    packaged, standardized and branded; they are portrayed in dream-world
    advertisements that ignore the complexities of real life.  As a
    result, we tend to forget that commodities are made by particular
    people in particular circumstances, and that they are shaped by
    various institutional pressures.  Marx's politics were wrong, but
    his descriptive analysis is often useful.  The critique of commodities
    directs us to throw off the illusions of advertising and use the
    tools of social science to look at the place of commodities in chains
    of human relationship.  Having done so, we can see them no longer in
    isolation but as pieces in a larger puzzle.
    
    Let me bring this perspective to a particular category of things,
    namely texts -- novels, news articles, scientific papers, and so
    on.  I call this an "analogy" because not all texts are commodities;
    scientific papers, for example, may be purchased by libraries, but
    the social relations around them -- peer review, for example -- are
    largely organized on non-commodity terms.  When texts are printed
    and sold on paper, they certainly seem thing-like.  You can buy them,
    file them, shelves them, mark them with a highlighter pen, or read
    them on the subway.  They seem fully detached from the circumstances
    in which they were produced.  Michael Curry has pointed out that books
    in particular come with a certain subliminal promise, that you can
    take them anywhere.  This is not really true, however, because every
    book presupposes that its reader lives in a world that is structurally
    related in way to the world of the author.  Scientific papers,
    for example, presuppose not simply the mastery of a certain jargon
    but participation in a certain ongoing dialogue among the field's
    members, as well as an appreciation of the practicalities of doing
    and reporting that particular type of science.  The scientific paper's
    ideal reader, therefore, is nearly certain to be another member of the
    scientific community.  The same is true in one way or another, to one
    degree or another, of many if not all categories of texts.
    
    This analysis may seem abstract, but it has concrete consequences in
    people's lives.  New graduate students are making a huge transition
    from one social status to another, and they are now the sorts of
    people to whom scientific papers (or whatever sorts of scholarly
    papers they are learning to write) are addressed.  Because of this,
    graduate students need to think of the papers they read as turns in a
    conversation and as moves in a complicated social world that has its
    own politics and economics.  Before entering graduate school, students
    are likely to read scientific papers (if at all) as the emanations
    of an authority -- the blank wall that too many institutions present
    to people at a distance -- and they are unlikely to think of those
    papers as having been written by real people that they might expect
    to meet.  Having entered graduate school, however, part of their job
    is preparing themselves to build professional networks, and that means
    meeting the authors of the papers they have read and cited in their
    work.  This transition, from treating scientific papers as dead things
    to treating them as embedded in a set of social relationships of you
    yourself are also part, is very much what Marx was talking about, and
    it can go wrong unless the student is provided with a decent theory of
    it.  That is why I wrote "Networking on the Network".
    
    With the advent of digital libraries, it will become more natural to
    understand texts in terms of their social embedding.  This is partly
    because digital libraries simplify the same uses of texts that were
    always possible on paper, but it is also because the radical changes
    in technology will help us to see even the old, predigital world in
    a new light.  Think, for example, of the author's contact information
    that is present in some kinds of texts.  Scientific papers have
    long carried the author's paper mailing address, and more recently
    they have begun carrying e-mail addresses and home page URL's as well.
    This contact information makes it possible to "reach through" the
    text to the author, whether directly by sending an e-mail query or
    indirectly by making it easier to peruse the author's other papers
    and research projects.  In fact, you can think of research libraries
    as directories that scientists and scholars use to identify potential
    professional friends.
    
    The institutions of scientific research make it relatively natural to
    drop a line to the author of a text, but other institutions may work
    differently.  Every institution organizes its own set of relations
    among people, and these are reflected (among other ways) in the
    presence or absence of contact information and the custom of using
    it.  The authors of mass-market fiction, for example, typically
    build mediating structures between themselves and their readers,
    and there is a paper to be written about how those structures are
    evolving.  Popular authors have long had fan clubs, but now it not
    unusual for them to post letters to their readers on fan Web sites.
    Less established authors may respond to their readers individually.
    Other texts are presented without authors' names at all, but rather
    as part of a structured communication campaign by an organization,
    meant either to position the organization in public consciousness
    or to affect the content of public agendas and the dynamics of public
    debate.  That is another set of relationships around a text, embedded
    in another set of institutions.
    
    A simplistic hope would be that digital libraries, by eliminating all
    of the technological impediments that separate authors and readers,
    will dissolve texts altogether so that they can commune directly.
    This scenario is simplistic in part because authors couldn't possibly
    commune with all their readers, nor readers with all the authors whose
    works they read.  Authors in effect use texts to multiply themselves,
    providing low-grade simulacra that compensate for their ability
    to explain their ideas to everyone individually.  But the scenario
    is also simplistic because it supposes that information technology
    dissolves institutions, when in fact it usually just changes the
    pace and dynamics of the relationships that are already in place,
    intensifying the logic that the institution has already created.
    The institution may end up changing, even collapsing or ceding ground
    to competitors, but when that happens it a result of the institution's
    own dynamics and not because the changes have been dictated directly
    by the workings of the technology.  Scientists in a world of digital
    libraries will still build professional networks; mass-market authors
    will still address themselves to mass audiences; organizations will
    still engage in strategic communication; and so on.  What if anything
    will change qualitatively as a result remains to be seen.
    
    This does not end the analysis, though.  To the contrary, it defines
    an interesting space of problems.  Let us consider again the case
    of the scientific paper.  Graduate students soon find themselves
    participating in what David Chapman called the "secret paper-passing
    network".  This is the professional network through which scientists
    circulate drafts of their research papers.  By the time a research
    paper appears in an archival journal, after a year or two of editorial
    delays, it has long ago been read by most of its core audience
    -- the scholars whose opinion the author's career most depends on.
    The author's professional friends will have had a chance to offer
    comments, and their names may appear in the acknowledgements section
    of the finished paper.  The friends, in turn, may never see the
    finished paper until they need to cite it, whereupon they turn
    to the library to check that they have their quotations and page
    numbers right.  In these ways, a scientific paper is already very
    much embedded in the social relations of science, and plainly so
    to everyone involved, and in ways that leave numerous marks on the
    "thing" -- the published text -- that might end up in an outsider's
    hands in the library stacks or a newcomer's hands in a first-year
    seminar.  The format and conventions of the scientific paper are, as
    Chuck Bazerman has shown, very much the historical product of authors'
    strategies for dealing with the institutional embedding of their work.
    
    Digital libraries will not eliminate this embedding, but perhaps the
    very form of the published work will evolve as the social dynamics
    around it are intensified.  The distinction between preprint servers
    and online archival journals, for example, is increasingly artificial,
    a product more of the outdated institutional arrangements of journal
    publishing than of the practical logic of science as the scientists
    experience it.  It has also long been suggested that digitally stored
    papers might contain extended content such as complete data sets,
    working software that readers can run on their own data, much larger
    collections of images, appendices, and so on.
    
    At a deeper level, however, the process of circulating drafts itself
    changes the nature of the paper.  In many realms, such as politics,
    collective writing exercises are frequently organized largely to
    compel the authors to agree on what they want to say and how.  Perhaps
    scientific papers, which after all are increasingly written by teams
    of researchers rather than single individuals, will increasingly work
    the same way.  Drafts can be circulated more easily to progressively
    wider circles of readers, comments can be obtained more easily,
    iterated drafts can be circulated again, and so on, with the paper's
    official authors effectively turning into one circle of authorship
    among many.  The authors are still claiming exclusive credit for
    the work, to be sure, but they are now more openly negotiating that
    credit, and their work has its effects on its readers in different,
    more interactive ways.  In some cases, the collective discussion
    is actually published in the pages of journals in the form of "open
    peer commentary" made famous by Current Anthropology and Behavioral
    and Brain Sciences.  It also happens less formally in the comments and
    responses that many journals publish.  But these mechanisms, while
    usefully revealing the dialogical process that normally goes on behind
    the scenes, are not iterative.
    
    A dissertation actually has something of the same character; we
    make students write dissertations that will gather dust on library
    shelves because we want the students to go through the transformative
    experience of conducting a full-scale project, relating it to
    existing work, and imposing order on the whole sprawling mess in a
    form that we can judge.  Many people who have written dissertations
    can testify that they are just as happy not to publish the result,
    given that it was their first time through a very unfamiliar process.
    The most important product of a dissertation-writing exercise is
    the dissertation's author, newly minted as a scholar woven into the
    community and capable of producing scholarly texts.  Dissertations
    might be strengthened if there were better mechanisms, formal or
    informal, by which chapters could be reviewed by successively wider
    circles of the author's colleagues-to-be in the field.  One approach
    would be to have students publish their "related work" chapters as
    stand-alone papers in peer-reviewed online journals specially designed
    for the purpose; these journals might even employ open commentary on
    drafts.  The motivation to referee such papers should be great, given
    the political nature and consequences of any survey article.
    
    I dwell on research papers because they are the texts that I know
    best, and the community whose infrastructure for connecting readers
    and writers is most developed.  I realize that the utopia of freely
    available digital libraries of all research publications is far from
    inevitable, particularly the part about it being free.  The larger
    theme, however, is the potential for innovation in both the form and
    process of publication that comes with the technology -- the greater
    ease, relatively speaking, with which the social relations around
    a text can be allowed to show through.  We will still have texts in
    such a world, but it will be much clearer to everyone that texts
    inscribe the workings of the world around them.  And the text itself
    will stop seeming like the natural unit of analysis.  Whereas a paper
    book is, by its nature, a relatively fixed and detachable quantity
    whose complex embedding in the larger world cannot be understood
    without real thought, new electronic forms have different attributes
    -- neither completely unfixed nor completely mired in the details of
    relationships, to be sure, but intertwined with the social processes
    around them in different, perhaps yet-unimagined ways from the
    relatively simple models that have been available so far.
    
    All of this poses certain conceptual challenges for the design of
    digital libraries.  Libraries, as we all know, are not basically
    about paper.  Rather, they are about managing the diversity of
    documents: forming coherent collections of them, representing
    them, imposing order on them, connecting people with them, computing
    their emergent properties, and so on.  The diversity of documents
    is important: documents exist in countless formats, structures,
    languages, relationships, and so on, and they do so partly because
    they are embedded in so many different institutions and forms
    of social relationship.  Libraries are meta-institutions: they
    support the work of institutions that work in very different ways.
    What I'm suggesting is that, as digital documents evolve into more
    complex embeddings in the institutions that create and use them,
    digital libraries will be challenged to relate to the institutions
    they support in even more complex and varied ways.  Care should be
    taken to ensure that implicitly paper-centered attributes of existing
    library institutions, understandable though they have been, are not
    automatically inscribed into digital libraries whose potential range
    of interrelations between documents and users is much wider.  Some
    scholars, for example, hold that the very idea of cataloguing the
    items in a collection is predicated on those items' permanence, when
    the digital world is full of items, such as drafts of papers, that
    are important but temporary.  If so then cataloguing will need to be
    understood in a broader way.
    
    This does not mean that cataloguing and other traditional library
    practices are obsolete -- far from it.  It means that the basic
    library way of looking at the world, starting from an assumption
    of diversity rather than the computer scientist's typical assumption
    of uniformity, will be central to the emerging digital world.
    Boundaries may blur or collapse between libraries and neighboring
    institutions such as publishing, collaborative authoring, enterprise
    computing, peer review, records management, informal paper-passing
    and commenting, data capture and archiving, tenure-and-promotion
    evaluation processes, personal libraries and filing systems, online
    conferencing, and so on.  Design in such a world will need to begin
    with institutional analysis, and with a fully drawn understanding
    of what documents can be in a world where people can readily reach
    through digital representations to pursue the ends to which documents
    are a means.
    
    **
    
    Parallel computing and the structure of the Internet.
    
    Peer-to-peer computing is graduating from its ideological period
    (centralization bad, decentralization good) and moving into a period
    of rational system design.  You can get a snapshot of this process
    by looking at the slides from Nelson Minar's talk at the last P2P
    conference:
    
      http://www.nelson.monkey.org/nelson-talks/oreilly-centralization/
    
    Nelson lays out a first rough taxonomy of peer-to-peer architectures
    for distributed computing.  He distinguishes between (1) centralized
    architectures, in which one machine maintains relations with many
    other machines, none of which communicate with one another, (2) ring
    architectures, in which each machine maintains relations with two of
    the others, all in a row, so that the system as a whole forms a cycle,
    (3) hierarchical architectures, in which the machines are arranged
    in a tree structure, and (4) decentralized architectures, in which
    the machines are not arranged in any definite topology and may contact
    one another arbitrarily or evolve a connection topology as the task
    requires.  Which of these architectures is best for a given task,
    Minar argues, should be regarded as a question for technical inquiry,
    not as an a priori question of ideology.  In this sense the term
    "peer-to-peer" is a leftover from the ideological days, since only
    two of the four architectures (ring and decentralized) treat their
    constituent machines as peers.
    
    According to this more engineering-oriented approach to peer-to-peer
    computing, the purpose of a given system topology is not to avoid
    seizure by the copyright police but simply to use computing resources
    most efficiently.  In that sense, peer-to-peer computing is starting
    to rediscover the world of research on parallel computing that has
    evolved independently of the Internet.  The language of "topologies"
    for parallel computing goes way back, and I am struck by the analogy
    between the argument for peer-to-peer computing on the Internet
    and the argument that Danny Hillis provides in the opening pages of
    his book about the Connection Machine.  The Connection Machine was a
    massively parallel architecture that was developed first at MIT and
    later at the Thinking Machines Corporation in the 1980's and 1990's.
    Hillis observed that the conventional von Neumann serial computer,
    though highly evolved, nonetheless makes extremely inefficient use
    of its circuitry.  A modern computer might contain literally billions
    of circuits, and so it should be capable of billions of processing
    operations in each clock cycle.  Unfortunately, nearly all of those
    billions of circuits are memory circuits, and nearly all of the memory
    circuits do nothing on a given clock cycle except perhaps refresh
    themselves.  It follows that an efficient machine needs more of a
    balance between memory and processing, so that a larger proportion
    of the circuits can be doing useful work at any given time.
    
    Thus the Connection Machine, which consist of many thousands or
    millions of simple processing elements, all with their own local
    memory and all executing the same broadcast software instructions
    (single-instruction-multiple-data operation, or SIMD).  The simple
    processing elements can exchange data by means of two communications
    grids, a single flat plane and a general-purpose packet-switching
    network.  The Connection Machine is useful for computational problems
    whose inherent structure entails homogenous processing across the
    entire data set and whose internal relationships match the Connection
    Machine's communication topologies.  A much-reduced Thinking Machines
    is part of Oracle now, and it is hard to tell whether the Connection
    Machine architecture failed for technical or business reasons.  In any
    case, the underlying argument is still partly valid.
    
    The analogy between the Connection Machine and peer-to-peer computing
    is this: the memory elements in a von Neumann serial machine are
    analogous to personal computers sitting on people's desktops, the
    centralized von Neumann processor is analogous to large Web servers,
    and the communications network of the Connection Machine is analogous
    to the Internet.  So the good news is that the Internet is already
    the Connection Machine, without the high-speed planar communication
    grid but also without the limitation of SIMD operation.  It is just a
    matter of rounding up spare computational cycles and programming them.
    
    Of course, the peer-to-peer community is not alone in viewing the
    Internet as a platform for distributed computing.  The scientific
    community already works with massive data sets using algorithms,
    especially simulation, that involve very high levels of inherent
    parallelism, and the concept of grid computing is to build virtual
    machines that make the Internet look like a single expansible parallel
    architecture for these sorts of advanced computations.  Despite its
    undoubted importance, though, scientific computing is in one sense
    the least interesting case of parallel distributed computing on the
    Internet.  As I pointed out in "Computation and Human Experience",
    computations are massively parallelizable to the extent that their
    inherent structure maps onto the structure of the physical world
    in which the computational elements are arranged, simply because
    computation is faster and easier to build when the wires are short.
    Our own physical world has three dimensions, and so the optimal case
    is a computation whose inherent structure has three dimensions or
    less.  And that is precisely the case in simulations of the physical
    world, at least the ones whose causality travels at far less than the
    speed of light, for which it really is too bad that the Connection
    Machine's two-dimensional communications grid has no parallel on the
    Internet.
    
    The hardest cases are the ones whose structure derives not from the
    same physical world where the computations will be realized, but from
    other worlds, such as the social world, whose structures are quite
    different.  This is why research on peer-to-peer computing emphasizes
    diversity and taxonomy rather than forcing maximum performance from
    a relatively narrow set of computational models.  The computational
    worldview will always be on the lookout for mathematically simple
    structures underlying the real-world problem that peer-to-peer work
    deals with, but in many cases that search will be misguided.  The
    social world does have some mathematically simple structures -- for
    example, when you get a large enough collection of anything, for
    example all the cities in a country or all the books in a library,
    things like Zipf's Law always seem to apply.  For the most part,
    however, the social world simply has structures of a very different
    sort than those that computational methodology is accustomed to.
    
    In this sense, the Internet is curiously allied with its seeming
    opposite, the von Neumann serial machine.  The serial machine may
    be limited to executing a single instruction at a time while leaving
    the vast majority of circuits spinning their wheels.  But in exchange
    for this inefficiency, the programmer is freed from the structural
    analysis that massive parallelism requires.  Of course, modern
    compilers and processors cooperate in discovering small amounts of
    parallelism, but this is all done automatically and needn't concern
    the programmer.  And programmers do need to analyze the structure of
    their problems in some sense, for example for purposes of abstraction
    and modularity.  It is just that those sorts of analysis are more
    routinely and uniformly rewarding analysis that succeeds only by
    flattening a complex computation onto a three-dimensional universe.
    The von Neumann processor simply punts on that problem, exchanging
    a minimum of efficiency on the average problem for a maximum of
    generality across all of them.
    
    The Internet makes a similar compromise.  By providing general-purpose
    switching capability, it does not force any a priori topology of
    communications onto the programmer or the user community.  In exchange
    for this generality, the Internet runs the risk of congestion.  That
    is why the Internet is best-suited for applications that make low
    demands on latency, and why controversy rages about whether to provide
    quality-of-service guarantees for latency-critical applications by
    overprovisioning the network (simply attaching more and more routers
    to bigger and bigger pipes) or by complicating the Internet protocols
    with mechanisms specially suited to guaranteed-latency communications.
    Grid computing imposes an even more rigorous set of pressures on the
    Internet: minimizing the latency of a large number of data streams
    simultaneously, where the data streams have a definite, stable
    structure as opposed to the moment-to-moment reconfigurability of
    general packet switching.
    
    As these arguments suggest, there is a difference between building
    a distributed virtual computer on top of a million far-flung Internet
    hosts, which is easy, and building a distributed virtual computer that
    uses resources efficiently.  Some computations, such as animation, can
    be decomposed into a large number of independent processes (one frame
    per processor), and in those cases the simple Internet-as-computer
    metaphor works very well.  But the physical world and the social world
    are both highly connected places, so most computations are not like
    that.  As it is, an abstraction barrier separates the generic Internet
    from the diverse computational structures that are built upon it.  At
    some point that abstraction barrier is going to come under pressure,
    and when that happens we will have to decide whose Internet it really
    is.
    
    **
    
    Toward a global campaign against organized irrationality.
    
    We ought to start a global campaign against organized irrationality,
    such as the assaults on rational thought that are conducted by the
    use of public relations methods in politics.  We would start by naming
    various types of distortion -- projection, for example -- that are
    pervasive in professionalized public debate.  By explaining in plain
    language the methods and motives that produce those distortions, we
    would help citizens to protect their minds against the irrationality
    that pelts them.  The need is profound: democracy will be impossible
    until civil society can delegitimate organized irrationality.  I know
    that organized irrationality may seem like too overwhelming opponent.
    But people have defeated other moral outrages in the past, and they
    can defeat organized irrationality too.
    
    To think about how a campaign against organized irrationality might
    work, let us compare and contrast it with the human rights movement.
    Precursors aside, the human rights movement as such begins with the
    UN's Universal Declaration of Human Rights that Eleanor Roosevelt
    negotiated fifty years ago.  Those sorts of international declarations
    are often misunderstood; after all, they have little or no legal
    force.  For this reason they are often called soft law, and many
    people are surprised to hear that scholars, diplomats, and activists
    take soft law seriously.  Soft law serves three purposes: it provides
    an occasion for building global networks of proponents, it requires
    the proponents to negotiate a common language, and it legitimizes
    that language as the basis for subsequent debates within and
    among countries.  These purposes interact, with the common language
    facilitating networking and the growing legitimacy of the language
    creating a greater motivation for networking.  The resulting discourse
    has its effects indirectly: once the language of human rights becomes
    entrenched in the public discourse of a country, so that ordinary
    citizens use human rights language to reframe their own local issues
    and build new structures of civil society, initiatives to give the
    language legal force can get under way.  Those initiatives will be
    strengthened both by the international legitimacy of the discourse and
    by the assistance that human rights activists in different countries
    can offer one another as the concrete political work begins.
    
    I will compare the proposed campaign against organized irrationality
    to the campaign against violations of human rights in several ways.
    
    (1) Naming.  A phrase would be needed to provide a common banner for
    movement activists in different countries to march under.  A phrase
    is not enough in itself, but it can focus the project of developing
    a more extensive discourse.  The ultimate goal is to entrench this
    discourse in everyday public discussion, so the necessary intellectual
    work must proceed on both scholarly and vernacular levels.  I suggest
    the phrase "organized irrationality" partly because it resembles an
    existing phrase, "organized violence".  A drawback is that "organized
    irrationality" is negative, not positive; names the problem, not
    the values that a solution would realize.  Unfortunately the word
    "rationality" is burdened with all kinds of distracting and spurious
    connotations.  The demagogues who make their living destroying public
    discourse often use anti-intellectual rhetoric to mock anyone who
    stands up against organized irrationality, with the result that many
    ordinary people believe that only trained specialists have the tools
    and authority to identify the distortions.  Trained specialists who
    can't explain themselves in vernacular language don't help either.
    
    (2) Prior identification.  Ordinary people can understand the idea of
    human rights straightaway: when someone tortures you, you are quite
    clear that something wrong has happened and that it shouldn't happen
    again to you or anyone else.  And once the language of human rights
    finds a foothold in response to those gross violations, little effort
    is required to extend it to a wider range of issues, such as access
    to medical care.  Achieving global consensus on that sort of extended
    usage might be hard, but comprehending in general terms what it would
    mean is easy.  Whereas the goal of torture is to produce a certain
    mental clarity about the reality of the situation -- we can do this to
    you -- the practitioners of organized irrationality have the opposite
    goal -- to produce a confusion that persuades people to wander around
    in a state of fragmentation or, better, to waste their days screaming
    incoherent slogans ("victim!") at imaginary enemies.  People who have
    been reduced to physical wrecks by torture may be afraid to stand up
    against the evil, but they understand its nature.  People who have
    been reduced to intellectual wrecks by organized irrationality will
    have been immunized against all attempts to help them, and it would
    obviously be wrong as well as futile to compel them to accept help.
    Thus, whereas a campaign against violations of human rights logically
    begins with the most extreme victims, who are the most motivated
    to write letters and lobby international bureaucrats on behalf of
    others, a campaign against organized irrationality logically begins
    with the people who occupy a twilight zone: sensitized to the nature
    of the evil but not yet lost to it.  Fortunately, such people will
    always exist.  People will be found along a spectrum, with the fully
    healthy at one end, the raving mad at the other end, and a wide range
    in-between of people who employ the rhetorical devices of organized
    irrationality simply because they have never heard anything else, but
    who have not reorganized their personalities in the disturbed way that
    the demagogues intend.
    
    (3) Problems of authority.  Democracy requires a strong civil society,
    and civil society is founded on an extensive network of individuals
    who have stepped forward to articulate positions on particular issues
    and mediate between ordinary citizens who agree with those positions
    and the public authorities who would be responsible for implementing
    them.  That much is a commonplace.  It should be recognized, however,
    that authoritarianism also creates something of that same description,
    identical in all formal ways to the workings of a democracy except
    that the "positions" and "issues" are systematically distorted.
    A democratic society is impossible unless people are immune to
    organized irrationality, and that will not happen unless they can
    name the distortions.  As a result, a movement for democracy is
    necessarily didactic in nature, at least when starting from the depths
    of organized irrationality that most "advanced" countries now suffer.
    The human rights movement must also teach its language, but the
    contrast between human rights and its opposite is much easier to
    explain than the contrast between rational thought and irrationality.
    The problem is that the demagogues of authoritarianism also pose as
    teachers, and they too "help" their victims to name various phenomena
    using phrases (e.g., "political correctness") that twist reality.
    The work of freeing people is thus superficially similar to the work
    of enslaving them, and it is hard to make the difference clear to
    people whose minds have been infected by the madness.  The difference,
    very importantly, is not just one between opinions, but between
    irrationality and the wide range of rational opinions.  In the case
    of the phrase "political correctness", for example, the irrationality
    consists in part in the systematic blurring of two ideas: (a) opinions
    other than the speaker's own, and (b) the practice of forcing one's
    opinion on others.  In this way, heterodox opinion is portrayed as
    ipso facto repressive, a reprehensible suggestion in any democracy.
    
    (4) Cultural meaning.  New political meanings are generally made
    by drawing on the reservoir of meanings that a culture inherits from
    its history.  In that sense human rights means something different
    in every national context, even as its values of universality stand
    in tension with particularism of nationalist cultures.  Human rights
    campaigners in every country must search through their respective
    cultures to find language that fits the global human rights discourse
    with the language of their own society.  This language may come from
    religion, or from historical leaders who are remembered as especially
    just.  Campaigners against organized irrationality have the same
    task.  They are looking for a language not of justice but of reason,
    or at least of opposition to unreason.  This is hard because of
    the aforementioned strands of anti-intellectualism that afflict many
    cultures; campaigners against unreason are too easily labeled as
    pretentious authorities whose academic niceties are far removed from
    the robust plain-spokenness of the common people.  Campaigners against
    unreason probably have no alternative to positioning the demagogues as
    the corrupt authorities that they are.  In practice this will usually
    mean drawing upon and elaborating in a positive way the inchoate
    populism that can be found in most cultures.  The idea is to offer
    people an identity that extends traditional elements and draws out
    the forces of sanity that can presumably always be found within them.
    To be an American, for example, is surely on some level to laugh at
    doubletalk.  The problem is that authoritarianism goes to enormous
    lengths to colonize popular identity -- it has no alternative, given
    that the beneficiaries of authoritarian culture are greatly outnumbered
    by its victims.  This is why academic talk does not suffice.
    
    (5) Law.  The goals of the human rights movement are clear: to
    make violations of human rights illegal, and to make laws against
    human rights violations enforceable.  The goals of the campaign
    against organized irrationality are less straightforward.  Much as
    organized irrationality is the enemy of democracy, making organized
    irrationality illegal would be antidemocratic, not to mention
    impractical.  The campaign against organized irrationality, then,
    seeks to instill certain norms in each society.  It does this not
    by writing new laws, but by publicizing, explaining, and entrenching
    certain patterns of thought that identify and reject the twisted
    rhetorical devices that characterize organized irrationality.  The
    contrast with human rights, however, is not as sharp as it may appear.
    Laws do not write themselves, and they do not enforce themselves.
    A revolution in law such as the codification of human rights will not
    occur, or at least will not have consistent practical effect, unless
    the underlying principles of human rights are legitimated throughout
    the society -- not unanimously, perhaps, but beyond any possibility
    of overturning through an overt campaign or coup.  A social campaign,
    then, whether for human rights or against organized irrationality, is
    fundamentally going to be won or lost on the battlefield of people's
    minds.  And it is won only when the patterns of reasoning that it
    promotes are institutionalized in the society, meaning that they are
    woven into taken-for-granted daily discourse, written into textbooks,
    appealed to by all sides in public debates, and finally interpreted
    as synonymous with national identity.  Organized irrationality, like
    all social pathologies, can never be eliminated entirely.  It will
    always remain latent in the culture, waiting for an opportunity to
    return to the surface.  But it can be driven into its cave and kept
    there so long as society continues to affirm democratic values.  The
    consequences for law will surely be numerous, but literally outlawing
    irrationality will not be one of them.
    
    (6) Interests.  The impossibility of outlawing organized irrationality
    has a nonobvious side-effect: campaigns against it do not provide
    lawyers with ways of making a living.  Human rights campaigns are
    largely staffed by lawyers, and one of their motivations is that human
    rights law gives rise to controversies in which lawyers are employed.
    The point is not that lawyers are entirely mercenary; people in
    many professions seek ways to align their careers with their values.
    The problem is simply that it is unclear who can align their careers
    with the campaign against organized irrationality.  This is one
    reason why such a campaign should include expanded norms of practice
    for journalists and editors: confronting and rejecting irrationality
    should no longer be viewed as a breach of the reporter's duty of
    objectivity -- treating all "sides" to a controversy equally whether
    they make sense or not -- but quite the contrary should be part of
    the reporter's job as an upholder of democratic values.  Crusading
    against organized irrationality -- not just random mistakes by
    ordinary citizens, but the systematic practices by which legions of
    professional advocates twist language and subvert reason -- should
    be one way that a journalist can advance professionally.  Principled
    journalists surely do not enjoy having to quote spokespeople who
    dissolve serious issues into blurry associations, and they should have
    legitimated grounds, and even material incentives, to refuse to do so.
    
    (7) Asymmetries.  Human rights campaigners have the advantage that the
    most serious violations of human rights occur in the least powerful
    countries.  The leading industrial countries, for all their failings,
    nonetheless uphold high standards of human rights domestically.
    Human rights campaigns generally do not threaten them, and they are
    happy to wield the language of human rights selectively in support
    of their foreign policies.  While this does threaten to delegitimate
    that language, in practice its cynicism is clear enough in contrast to
    the principled stands of organizations that criticize all governments
    equally.  In the case of organized irrationality, by contrast, the
    worst offenders are found in the leading industrial countries, and
    the worst offender by far, the society in which organized irrationality
    has been most intensively developed and professionalized, has been
    the United States.  This is, of course, not the received understanding.
    Even though the term "propaganda" was once routinely used as a synonym
    for public relations in the United States, Cold War propaganda stuck
    the word "propaganda" exclusively on the communist governments that
    the United States opposed.  While the propaganda of communism was
    surely reprehensible, we should understand how ineffective it was
    in comparison to the propaganda of the First World.  Vaclav Havel
    wrote extensively of the emptiness of official language in communist
    Czechoslovakia, where it was repeated by everyone but believed by
    no one.  Just as the economic system of capitalism proved itself
    much more capable of manufacturing automobiles and computers, its
    superiority in the propaganda realm was just as great, and for the
    same reason.  Private propaganda is of higher quality than public
    propaganda, and the export of American political technologies is
    one of the gravest dangers to democratic values globally -- even
    as the labelling of those technologies *as* American is the most
    straightforward ways of building societal immunity against them.
    At the same time, the Cold War also provides considerable grounds
    for optimism.  Human rights campaigners once confronted a world
    power, the Soviet Union, whose hostility to human rights was vehement
    and overwhelming.  Yet the Soviet Union's fell in large part because
    it was delegitimated through its signing of the Helsinki Accords.
    Now a global human rights campaign is accelerating in the Chinese
    diaspora as well.  The evil of organized irrationality in the United
    States should not be equated with the evil of the Gulag Archipelago --
    confusing people is not as bad as killing them -- but the magnitude of
    the challenge is comparable even so.
    
    **
    
    Beyond scientism.
    
    Having disparaged irrationality, I also want to talk about what Hayek
    and others have called scientism.  Scientism is not science; in fact
    it's the opposite of science parading as science for the benefit
    of people -- scientists and non-scientists alike -- who uncritically
    treat science more as symbol than substance.
    
    Here is an example.  I know someone who regards science very highly.
    He holds some strong beliefs: that science is the only possible source
    of knowledge; that a modern society depends on such knowledge; that
    the scientific foundations of knowledge are constantly under mortal
    attack by forces of irrationality that include religion, mysticism,
    and bad philosophy; and that these onslaughts of irrationalism are so
    powerful that science -- and thus civilization -- are in grave danger.
    I was aware of these beliefs, but I hadn't realized their intensity
    until one evening when I happened to mention that I found plausible
    the widespread idea that a person's emotional state could have
    some effect on their physical health.  When I said this, my friend
    looked at me in slack-jawed amazement.  He then underwent a long
    bout of stammering, starting and stopping various bits and pieces
    of sentences, until at last he was finally able to explain what was
    happening to him.  He told me that he regarded my suggestion about
    emotional states and physical health as so bizarre that it would
    be literally immoral even to discuss it, lest the bizarre belief
    be given a civilization-endangering respect that it does not deserve.
    He had been trying to explain this to me, except that he believed that
    explaining it would be immoral, thus the stammering.  Finally, though,
    he persuaded himself that the risk to civilization of explaining the
    problem to me was less than the risk to civilization that I would
    pose by spreading my error to others.  He was certain that I had been
    joking, or at best just irresponsibly spouting off without considering
    the consequences, and he tried to get me to recant.
    
    I was amused as heck by all this, and I carefully verified that he had
    understood me correctly.  I then proceeded to torment him by walking
    through the argument why such a belief would be plausible.  After
    all, I said, scientists regard emotions as electrical and biochemical
    states in the brain, and the brain is connected to the body.  My
    friend looked as though I had sworn allegiance to Satan, went through
    another round of stammering, and finally explained to me that it
    was not possible for mental states to influence the physical world
    -- that would be magic, and magic is the opposite of science.  It
    soon developed that my highly scientific friend believed in a radical
    version of mind-body dualism, so radical that the mind could not have
    the slightest causal dealings with the body.  I found this belief
    nonsensical to the point of delusion, but he refused to discuss any
    further what he regarded as a gross assault on civilization.
    
    This really happened.
    
    I will give you another example.  When I worked at UC San Diego,
    a professor in our sociology department named Steve Shapin published
    a book entitled "A Social History of Truth".  It's an account of
    the social context in which science arose, and particularly the role
    of trust among the aristocratic class that founded the Royal Society.
    Steve was being playful with his title, which he intended as a
    provocative invitation to scholars of early modern science to read his
    book and consider the fine points of his argument.  Little did he know
    that he would be subjected to a right-wing campaign portraying him as
    an example of liberal relativism.  This campaign made an utter mockery
    of his argument, ignored it altogether to be honest, and proceeded
    purely from his title to spin all sorts of intellectual slander about
    him.  This was shameful enough, but what was really shameful was the
    willingness of some actual scientists to join in.  I had lunch with
    the most vocal of these, a biologist who lectured me at tremendous
    and very tedious length about the scientific method.  It didn't
    seem to have occurred to him that I had attended eighth-grade science
    class, not to mention sophomore experimental physics class, and was
    well-informed on the subject.  Indeed it do not seem to have occured
    to him to take the slightest interest in anything that I had to say.
    Instead, he "knew" perfectly well what was going on: an attack on
    science.  He ascribed to Shapin the kind of philosophical idealism
    that some people gloss by saying that "reality is just a social
    construction".  Never mind that most theories that use the phrase
    "social construction" have nothing to do with idealism.  This guy did
    not have the faintest idea of what Shapin had said; even though Shapin
    had written an entire book about the social origins of the scientific
    method, he carried on as if Shapin (in his words) "simply failed to
    understand" such-and-such basic facts, namely the scientific method.
    The irony of the situation was pretty serious: this scientist was
    preaching to me the central importance of empirical inquiry in the
    fight against dogma, while rejecting in the most dogmatic fashion
    a serious attempt at  empirical inquiry into the practice of science.
    He was not alone, and I got the impression that a rumor had spread
    through the local scientific community that a sociologist on their
    own campus was one of "them"; their stereotyped expectations were so
    perfectly confirmed that empirical inquiry into the nature of their
    colleague's views was not required.
    
    I have seen this pattern on numerous occasions: when you burrow into
    the logic of society's most vocal defenders of science, you routinely
    encounter the most howling antiscience at its core.  Having said this,
    experience shows that my life will now become much harder unless
    I hasten to add that I am not myself hostile toward science; indeed,
    it seems to me that the advocates of scientism are the ones who do
    not believe in science.  And I have a theory about where the pattern
    comes from.  New institutions rarely become established without a
    fight, and the institution's participants routinely keep the fight
    going, consciously or not, for years and centuries after the rest of
    the world has moved on.  For example, traditional healing practices
    once represented serious competition to scientific medicine, and
    reasonably so, since medicine had not yet invented sterilization.
    The point is not just about the comparative efficacy of the two
    systems.  As traditional social systems broke down, the cultural
    context of traditional healing practices broke down along with
    them, and scientific medicine was better fitted to the new social
    systems.  In a social sense the most basic claim of science is not
    that it works better, but that its methods are public and defeasible.
    If a traditional healer makes a claim, it is basically a matter of
    reputation and authority, so traditional healers are regulated by the
    community's long-term experience and not by its ability to evaluate
    particular claims.  If a scientist makes a claim, on the other hand,
    the warrant for the claim is, it is said, out in public where anyone
    with sufficient training can evaluate it.  In a modern society where
    knowledge-claims have consequences for the distribution of power,
    this kind of public defeasibility is crucial for social institutions
    to function at all.  That is why my friend was so appalled at my
    seemingly unscientific views, and why he explained his objection
    in political terms.  From his perspective, claims about the emotional
    basis of physical health -- which he regarded as nondefeasible
    by their nature -- were a short step away from social collapse and
    dictatorship.
    
    This theory explains many otherwise strange phenomena.  Consider,
    for example, the attempts by Congress and the National Institutes
    of Health to establish an Office of Alternative Medicine to perform
    scientific tests of various unconventional treatments that have
    been offered as medical therapies.  They got a guy to run it who
    was a trained scientist who had been raised in a traditional Native
    American society.  This initiative seemed like perfect common sense
    to me.  If you have large numbers of people believing that they can
    treat illnesses by strapping magnets to their bodies, it would seem
    like a valid function of government to support controlled scientific
    experiments to determine whether these procedures have any medical
    effect.  After all, such experiments are the most routine, most
    straightforward kind of science in the world.  This view, however,
    was not shared by a vocal group of scientists who were adamantly
    opposed even to performing the tests.  They couched some of their
    arguments in terms of objections to the methodology or credentials
    of the people who were chosen to perform the experiments, but it was
    clear that their objection was in principle.  They were not interested
    in fine-tuning the experiments but in preventing them.  Often their
    arguments were disturbingly circular: no scientific proof existed that
    these therapies had any benefit, and so it would be wrong to search
    for scientific proof.  By those rules, of course, no science would
    ever be done.  Alternatively, they argued that the therapies should
    not be tested because they had no theoretical basis -- the purest
    dogma, as if theory were the test of reality and not the other way
    around.
    
    These thoughts come to mind, as you might have guessed, in response to
    the recent news report on scientists in the Netherlands (where else?)
    who are seeking scientific evidence for supernatural explanations
    of near-death experiences (NDE's).  Now, I think it is perfectly
    proper to subject these phenomena to scientific tests.  What bothers
    me is the assumption, apparently by all parties both pro and con,
    that the stakes are nothing less than the foundations of science.
    It seems to me that culture and science are engaged in a pointless
    battle here, with scientists -- meaning, now, adherents of scientism
    -- assuming that the phenomena are going to be easily be explained
    away with a squirt of brain chemicals, and non-scientists -- meaning,
    now, adherents of a kind of simplistic anti-science -- gunning for the
    most basic foundations of the mechanistic worldview.  This drama, it
    seems to me, gets in the way of any serious inquiry into the matter,
    which in turn ultimately strengthens the hand of the anti-scientists
    and undermines the place of science in culture.
    
    (I'm told that you can find the original article about the NDE work
    at <http://www.lancet.com/search>, free registration required; look
    for "near death" and it's the first article that comes up, with Pim
    van Lommel as the first author.)
    
    Let us consider another case: the phenomena of people who believe
    that they can talk to the dead.  Talking to the dead is a widespread
    practice, indeed nearly universal, in shamanistic cultures throughout
    the world, and it is also an experience that many people in modern
    societies have had.  The firefighters at the World Trade Center
    routinely say that they can hear their dead buddies directing
    them through the rubble.  It will not suffice to accuse these
    people of pretending.  Some people do pretend about such things,
    of course, just as some people pretend that they can fix plumbing.
    But it strains credulity to think that cultures the world round have
    built enormous ritual systems around pretending that they see images,
    hear voices, engage in conversations with those voices, and so on.
    People do have those experiences.  The question is what's going on
    with them.  The scientistic impulse is to blow off the phenomenon
    with some trite explanation: they're crazy, they're ripping
    people off, they've eaten moldy grain, etc.  Followers of scientism
    routinely claim to know the truth about such matters, even though
    they believe that knowledge follows from experiments, and even though
    no such experiments have been performed.  Scientism is not science.
    
    I'm not going to take a position about the reality of talking to the
    dead.  I do want to argue, though, that it is far from implausible
    on scientific grounds that people actually do have experiences that
    deserve to be called "talking to the dead".  Science often starts
    from the metaphors of the age, so let us start from metaphors of
    software.  Imagine that our minds are software architectures that
    happen to include fairly general provisions for mobile code.  Imagine
    that modules of mobile code can move easily from one person's mind
    to another, transferred through a wide range of subliminal signalling
    mechanisms.  (Sam Shepard's early plays are based explicitly on this
    premise.)  Perhaps the modules resident in different people's minds
    can even communicate with one another through the outwardly innocuous
    arrangements of objects in a room.  In such a world, it is entirely
    imaginable that our selves are distributed, and that each of us,
    far from being confined to our own heads, is actually spread out in
    several people's heads.  This idea is not far distant from what Freud
    called "introjection" and it is even closer to what later Freudians
    called "projective identification".  When we die, the theory suggests,
    we do not instantly depart.  Rather, large parts of our psyches remain
    distributed throughout the minds of the people we knew and encoded
    in the physical arrangements we left behind.  Someone who talks to
    the dead, on this view, is simply making contact with these remnants
    of the psyche.  It's not a complicated idea.  And anyone who knows how
    computers work could fill in the details.
    
    Am I saying that this theory is true?  No, of course not.  I have
    no proof.  What I'm trying to explain is the unfortunate cultural
    dynamic by which this entirely plausible, entirely thinkable theory
    nonetheless remains unthought -- or at least unsaid, even unhinted,
    in any respectable public discussion.  Even to suggest it is to open
    the doors of the most dangerous conversations in Western society.
    It is immediately evident, for example, that the distributed psyche
    theory could be used to explain telepathy, ghosts, and some kinds of
    clairvoyance.  It could provide a scientific basis for the afterlife,
    metempsychosis, and many other religious beliefs, and especially
    for the ritual practices of shamans.  It is hard to know who would
    find this theory more threatening, the scientists -- who would have
    to admit that vast ranges of human experience lie entirely outside
    the artificial boundaries that they've set for their theories -- or
    the anti-scientists -- who are probably smart enough to see how many
    claimed phenomena the mobile-code theory *doesn't* explain.  My real
    point is that science as we know it today is too caught up in cultural
    double-binds for its own good, or ours.
    
    end
    



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