higher standard

Superman (1978 version)

How time travel is achieved: Superman zips into space and flies faster than the speed of light, round and round, reversing the planet's spin and reversing time.

Carroll says: "It would cause earthquakes and kill millions. And really, if you can do this, then why, if you're Superman, don't you do this all the time? He should be held to a higher standard."

- How does time travel really work? Hollywood portrays many different and conflicting means.