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by drostie 4044 days ago
Honestly the situation was a little confusing because I like to think about a thought experiment which is similar (a coordinated three-person game called "Betrayal" which exemplifies the weirdness of quantum mechanics) and due to this I imagined that the "win criterion" was "Alice and Bob both have to get each other's answer right."

When I re-read the description and said "oh, they only have to have one correct answer between them," it was just like, "how can I make sure that when Alice is wrong then Bob is right?". The solution followed about a second later, "well if Alice guesses the same as her flip, maybe Bob guesses the opposite of his", without any logic tables or further reasoning or anything. Then I drew up the 4 possible coin flips and the resulting predictions and wins, to prove that it was correct, just in case I was somehow missing something.

1 comments

Yea, I made the exact same mistake at first. (Thinking that Alice AND Bob must always know the answer)