Matt Smith has been quoted as saying ""What Steven has written in this Angels episode is perfect. You know, there's something that harks back to ''The Eleventh Hour,'' that Steven had thought of about two-and-a-half years ago! Isn't that remarkable, that it's been in Steven's head for that long?"
So, what clues are there in "The Eleventh Hour" that might give us a hint?
--Uncle Mac