Great article on How to Flawlessly Predict Anything on the Internet.
This is a modern update to a classic confidence game—find a risky scenario with limited possibilities, bet on every single combination, and then hide your failures. The result is that you look like you’re either psychic or a goddamned genius.
It’s simple, silly, but the sort of thing that when you don’t know how it’s done, sparks craziness on the Internet.