Alidar Jarok wrote:
^ Yeah, somebody stopped paying attention halfway through the episode and missed the resolution to that contradiction.
No. No one should do a time travel episode. Ever again. No one knows how to do anything interesting with them. Physicists and philosophers haven't solved the grandfather paradox and neither have sci-fi writers. They are simply used as reset button ex machinas. It killed Star Trek. Never again, please God never again.
Tell that to Doctor Who.
I thought about that when I was writing my post, but I don't think Doctor Who quite fits the standard Time Travel trope. The Doctor mainly traveled back and forth in time rather than starting from point X and going backwards in time for a retcon. I haven't seen the new version but even the older version cut back on the travel within Earth's history after the first Doctor.