There's a delicate distinction here. I consider it certain that, on some level, such worlds *do* exist -- just usually with such a tiny probability vector as to be largely irrelevant except as thought experiments. (For that matter, taking Many Worlds quite literally, I wind up with the conclusion that even worlds of apparent "magic" exist on some level -- just with probability vectors that are many orders of magnitude lower probability below that.)
The trick with Many Worlds is grokking deeply that odds of "10000 to 1", "10**zillionth to 1" and "impossible" are each meaningful, and very different from each other. Hence my point, which is that what actually *matters* is usually the probability of going from state A to state B...
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Date: 2014-03-11 08:40 pm (UTC)The trick with Many Worlds is grokking deeply that odds of "10000 to 1", "10**zillionth to 1" and "impossible" are each meaningful, and very different from each other. Hence my point, which is that what actually *matters* is usually the probability of going from state A to state B...