Yup, that corpse. 
Time is the fourth dimension, therefore he is (almost) a four dimensional man.

DOCTOR: Some things are fixed, some things are in flux. Pompeii is fixed.
DONNA: How do you know which is which?
DOCTOR: Because that's how I see the universe. Every waking second, I can see what is, what was, what could be, what must not. That's the burden of a Time Lord, Donna. And I'm the only one left.
DONNA: How many people died?
Time is the fourth dimension, therefore he is (almost) a four dimensional man.