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PLATONIC_HATE


                                              February - May, 2008
Throughout the Black Swan, Taleb
repeatedly uses Plato as a swear              BLACK_SWAN
word. From the Prologue, p. xxv:

     "What I call _Platonicity_, after the ideas
     (and personality) of the philosopher Plato,
     is our tendency to mistake the map for the
     territory, to focus on pure and well-defined
     'forms,' ... When these ideas and crisp
     constructs inhabit our minds, we privilege
     them over other less elegant objects,
     those with messier and less tractable
     structures ... "

     "Platonicity is what makes us think the
     we understand more than we actually do. ..."


I suspect that this is a bit harsh
on Plato.  Arguably, Socrates
was continually rubbing people's
nose in the fact that they don't
understand much about the things           ARROW_OF_DEMOCRACY
that are most important to them.


  I found Taleb's repetitive
  use of the term "Platonicity"
  irritating.

  What's wrong with just saying
  "idealized" or "over-simplified"?


          "... I do not want to be drawn into
       philosophical debates with my Black
       Swan idea.  What I mean by Platonicity
       is not so metaphysical."  -- p. 291

       He just uses metaphysical jargon
       when it sounds impressive.



But then, it is certainly true that many a
person out there is afflicted with a need
for certainty that can only be satisfied by
delusion.

And indeed, many of these people have
technical backgrounds -- it does seem
that one of the reasons people move
into a technical fields is to try to        Myself, I continually
find a firm place to stand, to avoid        seem to be at war with
those fuzzy problems associated with        people like this.
the humanities.
                                                   People who think
                                                   dictionaries
   But Taleb often seems to                        dictate usage
   be overstating the case                         instead of just
   with his attacks on                             track it.
   "Platonicity".
                                                   Wikipedia nerds who think
   There's a temptation to                         you can discuss human
   quote things like this                          knowledge objectively,
   at him:                                         uncontaminated by
                                                   human judgement or desire.
   "The triumphs of modern
   science, from Copernicus                        People with Computer
   and Kepler, Descartes and                       "Science" backgrounds
   Newton, had all involved                        who think that the
   the application of precise                      utility of a programming
   mathematics to the material                     language is proportional
   world, and this apparently                      to it's mathematical
   requires abstracting away                       elegance.
   from the grubby accidental
   properties of things to                             COMPUTER_SCIENCE_PROOF
   find their secret
   mathematical essences."                         Doctrinaire libertarians
                                                   who think a handful of
   Daniel Dennet,                                  insights into "supply and
   "Darwin's Dangerous Idea" (1995)                demand" and rational
   p. 37, Touchstone, 1st ed.                      incentive are enough to
                                                   redesign human society.
            There may not be a
            "platonic ideal" of an             WHEN_THE_DEVIL_QUOTES_SCRIPTURES
            electron, but there
            might as well be: every
            one of them is perfectly
            identical to the point
            where the physicist John
            Wheeler hypothesized
            that they were all the          (The electrons look like
            same electron replicated         positrons when moving
            through a time-travel            backwards, which implies
            trick, bouncing                  we have an equal number
            back-and-forth between           of each, so if you buy
            the beginning and end of         this theory we have a bad
            the universe.                    "missing anti-matter"
                                             problem.)
   The approach of idealization was
   tremendously successful for a wide
   class of problems.

   The attempt at applying them to human
   affairs was inevitable, however doomed
   the effort.

If you were to quote Dennet at Taleb
(and one reason I selected that quote
is that I would guess he's already
read it), he would file you away as
one of the many people who just don't
get what he's saying.

I submit that he gets this a lot because he's
not terribly consistent in what he says
(though I'm sure that he thinks that he is).


Taleb leads with a denial,
from p. xxv:                        TALEB

    "But I am not saying that Platonic forms
    don't exist.  Models and constructions,
    these intellectual maps of reality, are not
    always wrong ...  you do not beforehand
    ... know _where_ the map will be wrong ...
    These models are like potentially helpful
    medicines that carry random but very severe
    side effects."

But this is the last you'll hear of
any reasonable compromise on
subject of the utility of                   "To clarify, Platonic is
abstractions...  he goes on to              top-down, formulaic,
sneer at "Platonicity" with every           closed-minded, self-serving,
other breath.                               and commoditized; a-Platonic
                                            is bottom-up, open-minded,
   And I would argue he retracts            skeptical, and empirical."
   this compromise later: on
   p. 181, he claims Hayek's                   -- p. 182
   criticism of "scientism" in the
   social sciences should really
   be extended to all fields of                "Platonified economists
   knowledge...                                ignored the fact that
                                               people might prefer to
   He seems to be saying that                  do something other than
   the case of physics is an                   maximize their economic
   exception, and that even                    interests."  -- p. 184
   among the sciences,
   "platonic" idealism harms                             INTO_THE_BRAINPAN
   more than hurts.



   " Alfred North Whitehead called it the
     'fallacy of misplaced concreteness' "
                  -- p. 181

   But the trouble there lies
   in it being misplaced.

      As concrete as
      possible, but
      no more.            (Without being
                          a block-head?)


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