Person 1: I could jump across that river.
Person 2: No you couldn't.
You would fall in and drown.
Person 1: Nah, I could make it.
Person 2: There is like a .
00000001% chance that you could make that jump. That's pretty freakin' impobable dude.
Person 1: But not
impossible *tries to jump across river, but promptly falls in*