Howling:Plot point of Impossible Astronaut

I don't know if this point has already been made, but in hindsight, shouldn't we have realized it was a future Doctor at the beginning of TIA because of his Tie/suspender colour? Because, isn't his code Blue tie for going into the past and Red tie for going into the present or future.. So in that case, since he was wearing blue, we should've known without seeing the present Doctor at the cafe... Just a thought.. 70.170.64.226 00:24, August 27, 2011 (UTC)