MoreOn comments on Possibility and Could-ness - Less Wrong

34 Post author: Eliezer_Yudkowsky 14 June 2008 04:38AM

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Comment author: Caledonian2 16 June 2008 11:12:00PM 0 points [-]

So while it is logically impossible (ignoring quantum branching) that you will choose any of your options except one

No, it is not logically impossible - it would be impossible only if we insist that there are no random elements in time. We need not invoke 'quantum branching' to imagine a universe that is not deterministic.

and all but one of your considered consequences is counterfactual in a way that violates the laws of physics, you don't know which option is the real one until you choose it.

Again, this is wrong, because it is not known that the laws of physics permit one and only one outcome given an initial state.