Where do we even start with these quantum leap paradoxes?
Let's begin with the classic:
The Grandfather Paradox's Uninvited Guest
Imagine a time traveler who goes back in time and kills their own grandfather before he has children. But if they killed their grandfather, then how did they get to the past in the first place? And if they didn't get to the past, then how did they kill their grandfather? Ah, the infinite loops of logic!
Next up:
The Barber's Dilemma: A Quantum Leap of Faith
A barber is in a town with only one barber. One day, a traveler arrives, but the barber refuses to cut their hair because, paradoxically, the traveler doesn't need a haircut. But then, the barber gets a letter from the traveler, asking the barber to cut their hair, because they do need a haircut after all! Which is it? Does the barber cut, or don't they cut?
And last, but certainly not least:
The Twin Paradox: Two Minds, One Problem
Imagine two twins, each with their own twin paradox. One twin goes back in time, kills the other, and then, in an infinite loop, the other twin goes back in time, kills the first, and so on. Which twin is the killer, and which is the victim? Or are they both just victims of circumstance?
And so, the paradoxes never end. The quantum leap of logic, where up is down, and down is up.
Want more? Quantum Minimalist Paradoxes for the mathematically inclined, perhaps?