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- Path: sparky!uunet!usc!zaphod.mps.ohio-state.edu!swrinde!gatech!nscf!lakes!kalki33!system
- From: kalki33!system@lakes.trenton.sc.us
- Newsgroups: talk.origins
- Subject: Re: Probability of Evolution
- Message-ID: <J1PDuB15w165w@kalki33>
- Date: Tue, 17 Nov 92 05:37:06 EST
- References: <721915650.6918@minster.york.ac.uk>
- Reply-To: kalki33!system@lakes.trenton.sc.us
- Organization: Kalki's Infoline BBS, Aiken, SC, USA
- Lines: 68
-
- stuart@minster.york.ac.uk writes:
-
- > kalki33!system@lakes.trenton.sc.us wrote:
- > : > : > In actual fact, the probability of evolution of higher life forms is
- > : > : > bounded below by 0 and bounded above by 1. Any more definite stateme
- > : > : > is an exercise in intellectual fraud.
- > : > :
- > : > : Where did you get this "actual fact"?
- > : >
- > : > The probability of ANY EVENT occuring is bounded by 0 and 1 - by
- > : > definition.
- > :
- > : Yes, any probability is bounded by 0<p<1. But there are also sets of
- >
- > Actually it's 0<=p<=1.
-
- Yes, that's right. Our error in notation.
-
- > : probabilities that are bounded by numbers different from these. For
- > : example, the set of probabilities associated with the single toss of a
- > : coin is bounded by .25<p<.75. This is true because p=.5.
- >
- > Only for a FAIR coin, assuming it cannot land on its edge... but I guess
- > this is just nit picking :) (Also how can a single number express a
- > set of probabilities?)
-
- Yes, this is nitpicking. "p" is used precisely because it can have more
- than one value. We could have said p[heads]=.5 and p[tails]=.5.
-
- > : This is a "more definite statement" than saying 0<p<1, yet it is not
- > : intellectual fraud.
- >
- > Not the point, is it? By your argument p is also bounded by 0.3 and 0.6,
- > 0.2 and 0.8 etc. The original point was that you contested where the
- > "actual fact" came from - probability theory.
-
- No. He made the statement that "any more definite statement is an
- exercise in intellectual fraud" to which we object, since it is not
- justified except, apparently, by his opinion. We therefore showed an
- example which met his criterion of 0<=p<=1 but also made a "more
- definite statement", namely that .25<p<.75, which is not at all
- fraudulent. We did this to show that his criterion for "intellectual
- fraud" was not valid. He did not offer any justification for his
- proposition that the probability of evolution of higher life forms is
- bounded by 0 and 1 and no other numbers.
-
- Of course, it is obvious that he means that there is no way to determine
- the probability exactly, and that therefore the best estimate is the
- tautological one: that all probabilities are bounded by 0 and 1. But
- this is a fruitless statement, and we regard it simply as an attempt to
- dismiss the question entirely by a person who does not want to be
- bothered with trying to answer it. We, on the other hand, want to
- address it, so we need a more definite criterion than the vacuous
- 0<=p<=1.
-
- Sincerely,
- Kalki Dasa
-
-
- -------------------------------------------------------
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- | Krishna Krishna Hare Hare |
- | Hare Rama Hare Rama |
- | Rama Rama Hare Hare |
- | |
- | Kalki's Infoline BBS Aiken, South Carolina, USA |
- | (kalki33!kalki@lakes.trenton.sc.us) |
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