Philosophy and mathematics have no place together. Shame on you MIT for allowing this garbage. Loaders number would be the biggest number now. I guess MIT is turning into an art school now.
  —YouTube commenter "exet"

The Big Number Duel (also called Large Number Championship) was a large number-naming contest between associate professors Agustín Rayo of MIT and Adam N. Elga of Princeton University.

Elga went first, writing the number 1 on the board. Rayo wrote a string of ones on the board, and Elga turned a half of the ones into factorials. After that, they began to create their own notations.

Rayo won the contest; his winning entry is known as Rayo's number.

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