But is it actually infinite? Try the infinite chocolate trick / puzzle / illusion and let us know if it works for you, too.
Then see if you can figure out how it works.
Related reading: Curse of the crystal skulls and other vanishing area puzzles and the missing square puzzle.
Bonus 6th grade from Mashup Math: Chocolate Math, exploring perimeter, volume, and surface area using chocolate bars.
There are also more math videos in the archives.
via Boing Boing.