Re: A thought on regenerations (spoilers for "Night/Day of the Doctor"
The special was of course written after Eccleston turned down the chance to be in it.
The greatest science fiction series of all time is
Doctor Who! And I'll take you all on, one-by-one
or all in a bunch to back it up!"
--- Harlan Ellison, from his introduction
to the PINNACLE series of Doctor Who books