Hi, I have a quick question regarding the working of quantum physics. As I understand it, it's not possible to be 100% sure of a particle's location until we look at it. The question is though: how unsure are we of this? In other words, how many possible positions could the particle be in until we look at it - is it a question of millions, trillions, or, an infinite number of positions? Is there some constraint to the number of positions the particle could be in or are there no laws in the quantum world - is it all totally random?