MinutePhysics (which, if haven’t checked out already would be worth spending a little of your time on) and a fun whiteboard explainer on the different types of time-travel in various films and books. Specifically, the video synopses how time travel causally affects the perspective of characters’ timelines (Who has free will? Can you change things by going back to the past?).
I appreciate time travel stories that have a nice logic to them. I have to agree with Henry Reich when he says that, “Logical consistency is a thing that you may have noticed I think lays the foundation for good time travel stories.” Which explains why I didn’t like Star Trek: First Contact or the Original Superman.