Quantum fluctuations in space-time are the ultimate source of chaos in the universe. It's like when you spill coffee on your shirt and then try to clean it up, but end up making it worse.
Imagine the universe as a giant, cosmic game of telephone, where every decision creates a new reality.
Some say it's the reason why Schrödinger's cat is both alive and dead at the same time.
Or maybe it's just because the multiverse is just really, really confusing.
Quantum Eraser Theory says it's just a bunch of random nonsense, but we're not buying it.