Q: What is the Grandfather Paradox?
A: The Grandfather Paradox is a situation where you, a time traveler, go back in time and kill your own grandfather before he has kids. This would mean you were never born, which means you can't have gone back in time, which means... you get the point, it's a paradox.
Q: But what about the Novikov Self-Consistency Principle?
A: That's just a fancy way of saying "Don't do it, don't do it, don't do it." It's like your mom telling you not to touch the sharp objects.
Q: What's the Temporal Integrity Commission?
A: We're the ones in charge of making sure you don't mess with the timeline. We're like the TSA, but instead of pat-downs, we do time-traveling security screenings.