No.12244851 ViewReplyOriginalReport
Ok, /sci/, listen up... I got this question for you which came to my mind befor the sleep last night:

If an any given elementary particle, e.g. an electron, is a wave of probability, then how "wide" this wave actually is? Does it spread across the entire universe and at any given point in the universe there is a non zero probability to find this exact particle?

In other words: if I am measuring some property of electron there is a high probability that I will find the electron where I expect it to be. But at the same time since it is a wave of probability, is there a non-zero chance for it to exist at the surface of Mars or deep in space? Is there a limit where one can say that the probability of finding a particle is exactly zero?