All of dotdashdashdash's Comments + Replies

I'd say that if a superintelligent cat is trying to predict the outcome of someone's measurement of it in a complicated basis it'll only be more accurate if it uses information about its 'true' state as the observer sees it.

I agree with Scott Aaronson' objections to the paper. I think an inconsistency can be shown with a simpler argument:

Suppose two agents, each of which can be in two states, are prepared like in the paper and Aaronson's post.

Using the reasoning of the paper, if agent A finds it's in the $|1⟩$ state, it can deduce that B is in the $|0⟩$ state, so it can deduce that B is certain that A is in the $|+⟩$ state, so it can be certain that it's in the $|+⟩$ state, so it's not actually in the $|1⟩$ state as it sees itself to be.... (read more)