I'm a big believer in wave functions which ties into the famous Schrodinger thought experiment. Basically, a cat is in a box with a piece of radiation that decays at random, so the animal might die, or it might live. But it's both, until someone opens the box to observe the outcome. So before being observed, the cat is in a "superposition" of states, both alive and dead simultaneously. This is also related to "wave functions", which mainly applies to atomic particles like photons, which, when NOT being observed, act as waves, but when we look, they become solid particles! This has actually been proven! Look up the "Double Slit Experiment" which I mentioned in another thread.