Oh, interesting. EY just asked his readers to solve an impossible problem. I wonder how many will feel they have enough at stake here to actually pay the mental and emotional tax involved in solving impossible problems, to maintain that awful tension. I mean, at the end of the day, it's a fanfic on the Internet.

I sure hope the problem looks easier to some smarter readers than me, because it's gonna be silly from a promotion-of-rationality angle if the addition of rationality to Harry Potter changes the outcome from "hero wins" to "hero dies and people he cares about get horribly tortured to death".