It's that time of year again, when I get to watch new Doctor Who episodes, and I love me some Doctor Who. Well, last night I'm watching "The End Of Time Part One" (I believe is the title). The Doctor is sitting in the Cafe with Donna's grandfather (his name escapes me), and is asked why he can't just go back to when he lost The Master and follow him then. The Doctor replies "I can't cross my own timeline." Meanwhile, I'm going "Huh?" I can think of at least one episode when he has done exactly that, and another where he believes he has. In the episode where he first meets Martha Jones, she sees him on the street where he takes off his tie and talks to her, meanwhile he is also a couple of blocks away in the hospital in a bed, where he's been "all morning" as he tells her when she says she saw him on the street before. In the episode "The Other Doctor" he believes for most of the episode that he has somehow run into one of his future incarnations that has partial amnesia and forgotten about his past.
Anyone out there have any plausible explanations, or even any other examples to discuss? What do you guys think?
Anyone out there have any plausible explanations, or even any other examples to discuss? What do you guys think?