Board Thread:The Panopticon/@comment-7302713-20130331225051/@comment-6433721-20130331231525

Heh. This would be a discontinuity post if it didn't cover several episodes, eh?

Rather than production error, I'd say, "action off screen". There's no narrative evidence that the Amy in the alternative timeline was contemporary with the 909 year old doctor. It's an assumption, and there's evidence against it.

We know that the Amy inside the alternative time line is not the Amy from The Impossible Astronaut, because she draws herself as a pirate. We can presume this is after A Good Man Goes To War because Kovarian knows those events had happened. River is the only one who remembers it the first time (as it's the second time for her).

And, most importantly, this wouldn't be the first time Amy woke up remembering things that she hadn't known before. So, the Amy contemporary with the 1103 year old Doctor just wakes up one morning...