Ridiculously Huge Numbers [video]

Googol, googolplex, Graham's number, Ackermann's function, TREE, BB, Rayo's number ... For some reason big numbers seem to tickle some childlike fascination in me.

I randomly stumbled across this series that incrementally walks through the construction of truly gargantuan (computable) numbers. The fact that this touches on deep areas of math feels unexpected and fascinating.

Just wanted to share.