The Infinite Monkey Theorem

I chanced about this theory when searching for something really important. Its basically this.

"The infinite number theory revolves around the idea that a monkey hitting random keys on a keyboard or typewriter for an infinite amount of time, will for surely type in a text".

Call it weird, insane, cheesy.. but it does sound possible. Anyway there's more of the theorem in this link:
Junkworthknowing

I could not follow the Math part of it. But the rest of it surely does sound true.