vendredi 16 mars 2018

Epistemology in a Multiverse

Given a large enough/infinite multiverse, there are going to be worlds like this one, but where scientific/mathematical truths are spelled out in detail in erosion patterns. Where the writers of holy books make accurate predictions of future events, like earthquakes, supernova, etc., where people routinely score 100% on things like Zener card tests, where people's predictions about Pi digits are always right, etc. Call these worlds "extreme coincidence worlds" (ECW). In an infinite multiverse, the number of ECW's would be infinite.

Suppose you were in a debate with someone from such a world. How could you convince them they're the outlier and not you? You could try to explain that their incredibly fluky world will eventually revert back to a statistical norm, but of course your opponent will call you out for assuming you're the norm, and there will be an infinite set of ECW's where there is no reversion to the mean: fantastical coincidence will continue to be the norm and not the exception.

You could try to point to the distribution of worlds like ours (which presumably would vastly outnumber the fluky ones), but A) that would require being able to survey universes in the multiverse, which might not be possible in the debate, and B) in an infinite multiverse, the number of ECW's would be infinite, and countable infinite sets are always equal.


via International Skeptics Forum http://ift.tt/2GBRwKc

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