User blog comment:Alex001/Please READ!/@comment-1251855-20100613233706

@KingH10: Yeah, I reckon the pandorica is an exploded TARDIS or something. We could make it so that if you can break the Fourth Wall or know of the Bureau of Fiction you can't forget something that has been deleted. I'll probably remove that whole gravestone scene, it doesn't quite fit with the whole story's continuity.

@Explorer: In Series Five of Doctor Who, there are cracks in the fabric of space and time that resulted from a huge explosion. One type of crack absorbs people, places and things so that they'd never been born. They never existed at all. Only people who kept remembering the ones that were absorbed by the crack, or time travelers, remembered and everybody else forgot. Sure, it's slightly cruel, but if nobody remembers what happened I guess it's best.

We could adapt the idea so that if a character can break the Fourth Wall or is or was employed by the Bureau of Fiction or similar, they can remember.