User:SOTO/Forum Archive/The Panopticon/@comment-7302713-20130331225051/@comment-6433721-20130401034645

Especially given the Doctor's lesson above, it's more reasonable to think that the timeline, especially since the destruction of the Time Lord's control of it, is dynamic. It's demonstrated that a companion's memories change relative to the Doctor - as they did for Kazran. Why shouldn't they be able to change in a time-sensitive companion relative to an equivalent version of the Doctor, regardless of his physical presence or not?

Real World physics, as described and defined by mathematics, is suggesting that the universe itself is designed to prevent paradox from occurring, even if it doesn't necessarily rule out time travel. So, I gave no problem with the story allowing for the past and future to mutate relative to the Doctor. He and his species seem to act as special observer, crystallising the possible into reality. That's why Amy's death was fixed - not because the Doctor was totally incapable of visiting her, but because he never could have brought himself to visit her without rescuing them. Ack, more speculation. I better stop again.