Re: being inside a universe

From: Wei Dai <>
Date: Fri, 12 Jul 2002 11:41:09 -0700

That's a great post Hal. I'm going to take some time to think about how to
respond to it in detail. But first I want to say that I think the original
point of decision theory was to justify probability theory and explain
what probabilities mean. (What is the significance of these numbers
between 0 and 1?) So when you talk about something like first person
indeterminance or SSA, or science in general, you have to talk about it in
the context of a decision theory, otherwise the probabilities don't mean
anything - they're just arbitrary numbers.

So my motivation for studying decision theory is to better understand what
probabilities mean (especially when all universes exist). I think Joyce's
book helps greatly in that regard.
Received on Fri Jul 12 2002 - 11:42:15 PDT

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