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Also notice that he started out by assuming a 50% prior probability that God (that is to say, his God, the generic Judeo-Christian one) exists. Given that all of the "evidence" he then plugged in only raised the probability to 67%, we can see that:
a) it wasn't very good evidence, since the probability presumably ought to converge to 1 or 0 in the end, and:
b) if he'd picked a different prior probability to start with, he'd come out with a completely different answer. Some people would argue for a starting probability of 0%, since his God is only one possible version out of an infinite collection. Others--like me--would argue that you can't get a meaningful probability here, any more than you could if someone said, "Pick a number. How likely is it that you'll pick five?"
Someone pointed out that, if he considers destructive storms as evidence against his God, he really ought to count them as evidence for Zeus or Thor. Volcanic eruptions as evidence for Pele or Vulcan, horrific rape sprees as evidence for the Scarlet Harlot, and so forth. |
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