Quantum Leaps, man. They're like, totally unpredictable. One minute you're chillin' in the timestream, the next, BAM! You're stuck in a time loop of despair.
But don't worry, we've got some theories that might just help you navigate this temporal mess:
1. The Butterfly Effect: Small changes can have huge effects, but only if you're a wizard.
2. The Grandfather Paradox: Don't do it, don't do it.
3. The Multiverse Theory: There's more than one of everything, including timelines.