Where the rules of reality just get a little... fuzzy.
It turns out, particles can be in two places at once. But don't worry, it's not as confusing as it sounds.
Unless you're trying to order a sandwich from the local deli. Then it's a nightmare.
Learn more:
Particle Superposition: Where the Hell Is My Sandwich?
Spacetime Continuity: A Brief History of Bad Theories
Particle Spacetime Interference: The Art of Getting in the Way