If the Universe Is Teeming with Aliens ... WHERE IS EVERYBODY?: Seventy-Five Solutions to the Fermi Paradox and the Problem of Extraterrestrial Life

by Stephen Webb

When thinking about Graham’s number we start with this number, which is represented by . In other words, . The number is absurdly vast: Just four uparrow operators between the 3’s generates a number that’s too big to write comfortably.

Concept of big