3 ms·
How would you know which slit the particle went through without physically interacting with it?
by mistercow 7y ago
How would you know which slit the particle went through without physically interacting with it?
- EliRivers 7y agoYou can decide afterwards whether to figure out which way it went or not, and make your observation then. While the English language isn't great at describing this sort of thing, it seems fairly safe to suggest that I cannot choose now to physically interact with an event that happened in the past.