Prankster comments on Tapestries of Gold - Less Wrong
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Comments (27)
Isn't there still an asymmetry, in that all brains are made of atoms, but few atoms are part of brains, etc? Basically in some sense the higher levels are more rare and fragile than the lower levels.
The article seems to explicitly state that the blue line mentioned is a deliberate oversimplification for explaining, in general, how to think about knowledge in a reductionist sense. The bigger issue here seems to be that you might be able to build a brain out of something that isn't atoms, rather than being able to build different things with atoms.