In this post I respond to Sabine' Hossenfelder's description of the beam splitter paradox. Sabine (and everyone else) assumes you can shoot photons at the beam splitter, one photon at a time. You can't. There is no pea shooter for photons. All the mind-blowing paradoxes flow from the mistaken assumption that we have a little gun that lets us point and shoot photons at will. Here is my video response:
