Howling:Time can be rewritten, but not after you've read it- foreshadowing?

So, a new idea introduced in The Angels Take Manhattan is that time can be rewritten, but not after you've read it. In Asylum of the Daleks, we saw the actor who is cast to play the new companion turned into a dalek. I wonder if this idea of knowing the future determines it might play into the new companion becoming a dalek? Just a theroy though. Frodo the 9 fingered ~Hobbits FTW  14:54, October 14, 2012 (UTC)