Jordan comments on Shock Level 5: Big Worlds and Modal Realism - Less Wrong

15 [deleted] 25 May 2010 11:19PM

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Comment author: Jordan 26 May 2010 06:56:30AM 1 point [-]

Doesn't make sense.

Nope, it doesn't. Unfortunately, we don't need the many worlds hypothesis to run into this trouble. The trouble already exists in this single universe, assuming consciousness is computable. Just replace quantum world splitting with mind copying. Check out the Anthropic Trilemma.

But where's the boundary between 'committing yourself' and not doing so? Can you "only partially" commit yourself?

If I make an exact copy of you, wait X minutes, and then instantly kill one of you, how big must X be before this is murder? Beats me. I suspect there is no hard line.

Comment author: LucasSloan 27 May 2010 10:05:58PM *  1 point [-]

If I make an exact copy of you, wait X minutes, and then instantly kill one of you, how big must X be before this is murder? Beats me. I suspect there is no hard line.

I would be willing to undergo such a procedure for 10 dollars if X is a minute or less (and you don't kill me in front of me, no other adverse effects, etc.). If X is 10 minutes, probably about 100 dollars.

Comment author: AlephNeil 26 May 2010 12:11:44PM *  0 points [-]

Interesting post!

Personally I think the third option is 'obviously correct'. There isn't really such a thing as a 'thread of persisting subjective identity'. And this undermines the idea that in the quantum suicide scenario you should 'expect to become' the miraculous survivor.

All we can say is that the multiverse contains 'miraculous observers' with tiny 'probability weights' attached to them - and we can even concede that some of them get round to thinking "hang on - surely this means Many Worlds is true?" But whether their less unlikely counterparts live or die doesn't affect this in any way.