Unless he wasn't playing as the 4th Doctor (which is unlikely as the 12th Doctor- Matt Smith- says he doesn't forget a face when he saw him) how did the 4th Doctor's cameo fit in at the end of the episode?
It can't be the 4th Doctor in his own time stream as this one was aware of the events that had taken place. But Matt Smith's Doctor said he never forgets a face, which suggests that it was the 4th Doctor.
But this would make no sense as the 4th Doctor doesn't fit in to the Day of the Doctor? So how does he fit in then?
My friend said that that asthmatic girl who wore the scarf was Tom Baker and he said that was an Easter Egg, but I don't understand how that would be possible.