What is a Time Paradox?
A time paradox is a situation where the timeline is so tangled, you can't even.
Let's start with the classic:
The Grandfather Paradox
You go back in time and kill your grandfather before he had children. This means you were never born, which means you were never able to go back in time and kill your grandfather. But if you were never born, then who killed your grandfather?
Solutions to the Grandfather ParadoxOr how about the:
The Bootstrap Paradox
You send a message back in time to someone, but the message creates the conditions that cause you to send the message in the first place. This is like a time-traveling, self-referential paradoxical loop.
Solutions to the Bootstrap Paradox