nyan_sandwich comments on A case study in fooling oneself - Less Wrong
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How? What argument? I may very well have misunderstood the standard LW position here, so perhaps I agree with you and just don't know it yet. But I thought Eliezer did in fact suggest we lack a precise enough definition of consciousness to locate ourselves in the quantum ink-blot picture. And he certainly wants to find a better definition.
Approaching Emile's metaphor from this perspective, I thought it pointed out the need for better understanding of the question.
from my understanding of MW, the question of how many worlds can be answered pretty well by ~2 to the power of the average number of decoherence events since the beginning. Unless there's some wierdness with a lot of worlds getting terminated or still-lifed early.
The difference between counting the states in a quantum computer (for example) as one world or many is at most a constant factor, so the fuzziness on our concept of "world" isn't actually that much of a big deal. (I chose a quantum computer because it is probably the most definition-stretching phenomenon).
barring weird stuff like quantum computers, branches get very separate very fast, so I don't think it's all that weird to talk about number of worlds.
Deocherence evernts aren't well defined .. they are always FAPP. That;s the source of the problem.