Erebus
Well-Known Member
I think that method works fine, assuming that all the information about how the puzzle works is correct. However, in the movie (IIRC) it was the doors themselves that laid out the rules of the challenge, and since taking the challenge at face value implies assuming that one of the doors always lies, you're left with a paradox: if the description given by the doors is accurate, then it must be assumed that there's a definite chance that the description was inaccurate.
In the movie, she actually had no reliable information at all when she made her choice. Maybe both doors lie all the time; maybe one door always tells the truth and the other only lies part of the time.
Actually, IIRC, at some points the doors both say the same things, but the description of the situation implies that they'd always disagree. This means you can just throw that description away; you'd have nothing to go on.
Oh there's nothing wrong with his method, only the way he implemented it in his conclusion It can't be done in only one question.
but the description of the situation implies that they'd always disagree
a lot of people make that mistake