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The creepiest and weirdest thing I have is the creepy door lady with the eye patch saying that Amy must be dreaming or is dreaming.God, I'd forgotten about that until you mentioned it! WTF?
Sort of. But I think the idea was that he forced the Silence to leave Earth rather than dooming them all to death. They can't all be killed off right away seeing as how most of them were apparently living in underground tunnels, abandoned buildings, etc. And the Doctor has been getting mean for a while now. Remember what he did to that family who thought it was a bright idea to go Time Lord hunting?But he left the Family of Blood alive, he actually gave them the immortality that they were seeking, just in the most horrifying manner imaginable. His solution to the Silence problem was to basically program all of humanity FOR THE REST OF TIME, to immediately kill any of the Silence that they see. And he quite gleefully points out how humanity is going to spread out through the entire universe, so it's not like the Silence will have many places to hide. He doesn't even genuinely give them an opportunity to leave peacefully.
And the Doctor has been getting mean for a while now.