Why The Doctor would say he's 900.

[slvrcrystalc]

I think the time war screwed up his sense of time and said "Body 9?((8th regeneration)) Ok, then i'll be 900!"

or

He lied. =) He probably should be 1000+ something, so maybe he's embarased about his age. ((even though old school cannon has gallifreyans being redicusly old, like a life expectansy of 10, 000))

or

Something about the time war regressed

Comments

[oninofro]

Likely measured from his date of birth, using his relationship to the Tardis, and the singularity in it, to gauge where he is in accordance to that point of origin. Otherwise he's trillions when considering linear time travel due to where and when he's been.

[slvrcrystalc]

Gallifrey was his point of reference before. You could neither travel backwards or forwards in the planet's timeline, so the Doctor has been running parallel to the planet up to the point at which it was destroyed.

Then he probably switched to his TARDIS. ^.^

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Otherwise he's trillions when considering linear time travel due to where and when he's been.

The Doctor has been to the start of the universe to the end of it. There's no way he'd add any of that to his 'age'. He'd be (Infinity)+903. ^.^

[oninofro]

"The Doctor has been to the start of the universe to the end of it. There's no way he'd add any of that to his 'age'. He'd be (Infinity)+903