question:
Tom Baker is saying he's 760. But I'm certain that the current Doctor said he was 900.
So is there a "relative present" on the show that matches our own time (where his companions come from) and then we're to assume that between episodes and series he has had many travels and adventures that have built up 150 years or so of unseen stories?
I like that idea a bit more than assuming he had centuries of dicking around and then had to regenerate 8 times in 40 years. It also leaves open the option of untold stories. Like maybe the Fourth Doctor wasn't around for 7 years, he was around for 50 we just only saw 7 of those years.

Bow ties are coool.