Suppose you went to the worlds worst casino, "Infinite Odds". To win you had to pick an exact number, from 1 to a quadrillion (or any number). Not only that, but you had to do it a quadrillion times in a row. I know that I can multiply this out to get a '1 in X' times this will happen, X being pretty large.

Here is my question, given infinite trials, you can make the trial sample large enough to make whatever outlandish odds actually become a favorite to happen.

Given enough trials, '1 in X', no matter how large, becomes a favorite to happen.

In mathmatics, is there an accepted number that effectively becomes zero, even though given enough time you could express it?

Secondly, does anyone know of any medication for weird drifting thought patterns?