Well said. And furthermore: Any quantum mechanical system (i.e. all systems) is ultimately just a vibrational pattern, so trying to assign persistent identities

Well said. And furthermore: Any quantum mechanical system (i.e. all systems) is ultimately just a vibrational pattern, so trying to assign persistent identities to "things" is impossible because it's like trying to label the peaks and troughs in some standing wave oscillating on some medium. The wave is a pattern only, and the peaks/troughs are merely emergent phenomena with no actual identities, that have a history or a future, other than at the exact time of some observation. My favorite philosophical thought experiment to ask people is: "Do football stadium waves actually exist or is it merely people in two states (standing/sitting)?" The answer to that question is a superposition of both Yes and No. lol. It sounds like a silly question, but it actually gets to the heart of the deepest philosophical questions Physics.