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- Newsgroups: talk.origins
- Subject: Re: On God and Science
- Message-ID: <21DEC199211270751@skyblu.ccit.arizona.edu>
- From: lippard@skyblu.ccit.arizona.edu (James J. Lippard)
- Date: 21 Dec 1992 11:27 MST
- References: <1992Dec17.140135.28343@city.cs> <1gr8nhINNl5@fido.asd.sgi.com> <1992Dec20.223129.25238@galileo.cc.rochester.edu>
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- In article <1992Dec20.223129.25238@galileo.cc.rochester.edu>, esot@troi.cc.rochester.edu (Eric Sotnak) writes...
- >In <20DEC199214091069@skyblu.ccit.arizona.edu> lippard@skyblu.ccit.arizona.edu (James J. Lippard) writes:
- >
- >}>>I, too, once marveled at the unlikelihood of everything in the
- >}>>universe coming together in such a way to create me. Such an occurrance
- >}>>seemed wildly improbable. Then I realized that, had all circumstances
- >}>>not been as they were, I wouldn't be around to marvel, so questions of
- >}>>probability are meaningless. The probability of my existence, given that
- >}>>I exist, is exactly one, no matter what my theological assumption
- >
- >}>This seems like a bad argument, to me. Suppose I'm put in front of a firing
- >}>squad of fifteen men. They all fire, but I don't die. I continue to
- >}>exist. By an argument analogous to what you've given, I shouldn't marvel
- >}>at my own continued existence or wonder how it happened--the probability
- >}>was one. But if, in fact, all fifteen men *missed* me, there is an unusual
- >}>fact there that requires some sort of explanation. The fact that if they
- >}>hadn't missed me, then I wouldn't be there to puzzle over my existence, does
- >}>*not* explain what is curious in this situation. Likewise, the fact of
- >}>life's existence requires some sort of explanation other than the supposed
- >}>"explanation" offered by the anthropic principle.
- >
- > Yet Mr. Isaac's observation was made in the context of discussing the
- >"Tunian" claim that, in effect, the probability of life existing in the
- >universe is so remarkably low that we must infer a supernatural agency to
- >have brought it all about. In your firing squad example, you might feel
- >that only divine protection could have prevented your death (thus far,
- >anyway), but the members of the firing squad would be more interested in why
- >their aim was off. A winner of the lottery who wonders how (against all
- >probability) s/he managed to win, would be making a mistake in inferring a
- >supernatural agency at work, although s/he would be justified in being
- >surprised. The probability of having won the lottery GIVEN that one has
- >already done so, is, indeed, 1. But the antecedent probability of winning
- >the lottery given only that one has bought a ticket (not, of course, qua
- >winning ticket) is 1 in 14 million (or something like that). The
- >explanation for winning the lottery is going to be that (as it would happen)
- >certain numbered ping-pong balls got selected which yielded a number
- >corresponding to the winning ticket. If the winner says that there must
- >have been divine intervention because it was so improbable that the winning
- >number would correspond to his/her ticket, s/he is making a kind of mistake
- >in judgment. Mr. Tun has made the mistake of claiming that since the
- >(antecedent) probability of life existing (or having come into existence) is
- >so low, supernatural agency must be involved. Another mistake in judgment.
-
- I can, and do, agree with everything you said without agreeing that
- the anthropic principle explains the existence of life.
-
- Jim Lippard Lippard@CCIT.ARIZONA.EDU
- Dept. of Philosophy Lippard@ARIZVMS.BITNET
- University of Arizona
- Tucson, AZ 85721
-