Though I'm not sure being unfazed by time paradoxes is necessarily a good thing. The thing about time paradoxes is, they're paradoxes, and naturally complicated. That's why SF stories that try to deal with the problem are so engaging.

The first one I can think of was Ray Bradbury's 1952 "A Sound of Thunder", about the dinosaur hunters who change the past.

The notion doesn't seem to have interested Hollywood much until recent years. Remember that 1960s TV show "Time Tunnel"? They never dealt with paradoxes or any consequences...their time tunnel was pretty much a magic carpet for setting up plots to be resolved in 45 minutes or less. (Of course it's available on Amazon, all one season of it. Trivia: Dennis Hopper got his start on this show.)

That was 1966, and just a couple of years later Star Trek dealt with time travel and paradoxes: “The City on the Edge of Forever” we so recently discussed. But for the most part, when time travel comes up at all in movies/TV, it's a simple device to travel from point A to point B.

So bottom line I enjoy my time travel stories complicated and subtle, but that said, I sometimes think JJ Abrams carries it to extremes and complexifies just because he can.

How do you think he'll weave time travel and alternate universes into Star Wars? Now that I can't wait to see!