well, would you like to get into a drawn out discussion about quantum mechanics? wave particles, entropy, chaos theory? Basically I'll just say this. In modern science there are no exacts. There is no zero. I know, I know, some of you math whizes are out there playing with these things I'm throwing at you... GOOD. You are probably much better at math than I ever was.
Quatum Mechanics states there is only probabilities. You can get finer, and finer resolutions of probabilities... but never zero. The math is important because the better the math, the finer the resolution. The farther from zero you are, the larger the wave.