It is often said that electrons do not follow classical paths, especially in the context of electrons in atoms etc. I have absolutely no problem with this, as I do have a academic background in physics (but extremely rusty). Non-classical paths, uncertainty etc. being the case, what is then being shown in a bubble chamber if not a classical path? I am a bit embarrassed that I don't know the answer. Is it just that the uncertainty is too small to be relevant in a bubble chamber? I suppose bubbles in a liquid aren't exactly accurate measurements of anything right? So when a particle interacts to make bubbles, what have we actually measured? What happens to the wave function?