ACROSS THE MULTIVERSE
I’d like to apply a scientific theory to Doctor Who; specifically, the one that posits our universe as one of an infinite number of variations. This could be the answer to Doctor Who’s vast history of contradictions, such as the UNIT chronology nightmare. Being as, according to this so- called Many Worlds Theory, anything that can happen, does happen, the only explanation I can conclude from the Doctor’s travels is that the TARDIS is capable of travelling the whole multiverse. Perhaps in one universe, Sarah Jane came from 1980, but not in another.
We accept that the TARDIS can travel in time and space, so would it be such a giant leap for it to be able to sort of “slide” across into multiple realities as well, just as they did in that Jerry O’Connell series in the ’ 90s ( the title eludes me…).
Apart from being a neat continuity get- out clause, the multiverse theory could also open up new possibilities, such as alternative past incarnations of the Doctor, or known versions of the Doctor that regenerated much later – then we could have classic Doctors back and it wouldn’t even matter that they now appear to be much older.
Simon Hood, Selby The Doctor has visited parallel worlds before ( in “The Age Of Steel” for starters) but you have thought about this a lot, so have a book as reward for your efforts.