On 10/10/2013 1:36 PM, LizR wrote:
Both M and W man would have a continuous feeling of identity with H man. I don't see that you two really have opposing viewpoints, although as usual I may be missing something.

Of course if the brain can't be considered digital at any level (as Kermit suggests) then this is actually impossible, and the question doesn't arise. But personally I'm not about to embrance the idea that the universe is analogue all the way down - with the problems that causes (like the "ultraviolety catastrophe") - and if it's digital at any level, this will work.

Even if it's digital it can't be cloned at the quantum level. So the process couldn't be implemented if copying all the way down to the quantum state were necessary. But I don't think this is the case. Tegmark, among others, has shown that the brain is too hot to maintain quantum superpositions - so we can probably assume that classical copying is enough, with at worst a little loss of short term memory. It's interesting to consider though how accurate the copying would have to be for Bruno's question to make sense. Suppose the M and W man only retained a random 10% of the H man's memories?


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