I came up with this theory last night while watching ‘Blink’ with my brother (The proper Whovian):
When Kathy Nightingale wrote the letter to Sally Sparrow in the future (after Kathy had got sent to the past), Sally successfully recieved it. But here’s the thing, would Kathy have really wrote the letter if she found out that Sally was also sent back in time soon after she was? Here it is in a bit more detail:
Kathy wrote the letter explaining how she got on in her life, when she got sent back to the 1920’s. And Sally recieved it and read it. So since she got the letter, she should’ve known that was the only way for Kathy to talk to her; by writing a letter and telling someone to give it to her at that exact date and time. However, if Sally did get sent back in time by the Weeping Angels, then Kathy wouldn’t have needed to write a letter, because Sally was there with here. So since she recieved the letter, she should’ve known that she wouldn’t get sent back in time, and she’d know that she’s come out of the ordeal worry-free and still in the same time period.
Apart from this flaw, it was a pretty good episode! 🙂
