Steven Moffat has addressed some timey-wimey confusion following events in The Time of the Doctor.
In his production notes in the latest DWM a reader asks that if the Doctor in fact prevented his own death how could his tomb be there in The Name of the Doctor?
Moffat replies: “I’ve often wondered about that. Fortunately, late one night, the Doctor turned up in person and explained it to me:
“THE DOCTOR: Changing time is tricky. It’s a bit like a detective story: so as long there isn’t an actual body, you’ve got a certain amount of wiggle room – for instance, if the body has, rather conveniently, been burned on a boat in Utah.
“Here’s the thing: I can change the future so long as the future has not already been established as part of my own past. I can’t rescue Amy and Rory because I already know that I didn’t.
“But what do I know about Trenzalore? There’s a big monument that looks very like my TARDIS. There’s a temporal fissure leading to my timeline. Maybe it’s my grave. Maybe, one day, it’s my burial ground. Maybe it is something else entirely, and we got it all wrong. Don’t know. Don’t plan to find out for as long as possible. The main thing is, Clara still jumped into my time stream, and ended up helping me through all of my life. All that is established, unchanged – but there’s wiggle room!”
…wait.
so you can’t save them because you already know you didn’t?
you are a time traveller with near omnipotent powers and a penchant for taking ridiculous risks to see/help his friends.
and you’re not going to try to save them anyway?
because you saw the future and know you’re not saving them?
but then if you don’t try because you think it won’t work, then the SAME THING HAPPENS.
but what if the reason that you didn’t save/visit them is because of THIS MINDSET and your conclusion that you CANT just because you never did before/after.
that shit’s not heroic, that’s lazy ass protagonisting.
On the other hand, as nonsensical as The Angels Take Manhattan is, I’m glad he never went back for Amy. She’d made a choice to let him go, and I think unless the Doctor had made the sort of drastic effort he never makes, his relationship with Amy would’ve just sunk into massively unhealthy territory…