I was thinking about the double slit experiment and I know that if you let electrons go through one slit on the other it'll produce a pattern like a particle and if you let it go through both it'll act like a wave. I also know that if you observe the electron at the hole, the ones you observe will act like particles and the ones you miss will act like a wave. I also am fairly certain (correct me if I'm wrong) if you allow the electron to go though either hole without observing it at the hole, but observe it after the hole, it doesn't appear to act as though it went through the slits as a wave then turned into one when you observed it, it acts as though it's been a particle the whole time. First off, do I have the premise right? Then I know that electrons have no real fixed point in space, they giggle around randomly and have a statistical probability of being in some location at a given time. I was trying to think of how the electron acts when it's observed after it's already supposedly gone through the holes and it seemed as though it must have first gone through as a wave, been observed, then gone backwards in time and changed to a particle, and I know nothing's supposed to go backwards in time due to causality. So like they don't have a definite position in space until observed, do they also not have a definite position in time? I think that makes sense based on the concept of spacetime.