Millennium Problems

Millennium Problems

(alt-text)

The hard part about opening a hole in the proof of the Poincaré conjecture is that Grigori Perelman will come out of retirement to try to fix it by drawing a loop around the hole and contracting it to a point.

Preorder What If? 2 (all US preorders eligible) and enter our contest for a chance to win a dedicated comic and What If blog post!