Continuity is hard enough to keep between movies and their sequels - ask Terence Howard about Iron Man sometime, preferably from a long distance. When it comes to Doctor Who, a show that has lasted more than fifty years, and which originally aired before anyone had any conception of VCRs, the Internet, or even re-runs, it's damned near impossible. So the showrunners have essentially given up trying too hard - the invention of the phrase "wibbly wobbly, timey-wimey" to explain away any and all inconsistencies was a stroke of genius, even if the show does too frequently feel like it's trying to retroactively rewrite its own history at times (seriously, Clara was prophesied before William Hartnell's Doctor ever left Gallifrey?).But sci-fi fans - being sci-fi fans - want answers. And in the absence of specifics, they'll make them up themselves. Sometimes, people involved with the show itself make them up. Other times, devotees imagine where the universe of the show might cross into others. Here, with a debt of thanks to my Facebook friends, are 12 of the best. Be these theories frivolous, weighty, semi-canon, or imagined subtext... all of them make sense to one extent or another.
Why Don't the Daleks Kill the Doctor, Like, Ever?
The Doctor has been on the wrong end of an extermination ray many times, yet the Daleks have never killed him. This can be attributable to the same trait that bedevils Bond villains - they want to gloat, and it's their downfall. The twelfth Doctor, however, has added a new wrinkle, in that he saved Davros as a child, and as such, is respected by the Daleks because he created them in a roundabout sort of way.This doesn't technically require the Capaldi Doctor to make sense, though. In "Genesis of the Daleks," the Fourth Doctor is sent back to stop the Daleks from existing, Terminator-style, and ultimately can't do it, realizing that he'd also be undoing years of good deeds that occurred in response to the Dalek menace. Maybe they granted him the same courtesy in reverse.
The Earth Word "Doctor" Comes From Gallifrey
This one has a particular degree of credibility because it came directly from showrunner Steven Moffat when he was just a fan in 1995. It's the notion that our word "doctor" comes from humans encountering the Doctor, and thus getting the impression that the word means "healer or wise man."
It makes sense because Moffat himself would get the chance years later to mention it on the show, in a River Song line:
"Doctor. The word for healer and wise man throughout the universe. We get that word from you, you know. But if you carry on the way you are, what might that word come to mean? To the people of the Gamma Forests, the word Doctor means mighty warrior."
On the other hand, the emergence of the War Doctor gave us the notion that "Doctor" was a name chosen as a promise, and the word already existed in its traditional meaning; having broken the promise to be a healer and become a killer instead, the Doctor, contrary to River's assertion, could no longer use a name that connoted healing.Moffat likes to retcon, but this time he may have retconned himself. Unless the Gallifreyan word for Doctor now originates with humans before being forgotten, and then coming back into fashion when the Gallifreyan usage of it by the Doctor re-influenced human language. Hey, it's not the craziest thing this mythology has ever offered.
Mary Poppins Is a Time Lord
She has a bag that's bigger on the inside. Her umbrella functions as both a sonic screwdriver and a TARDIS. She has a penchant for scarves and bow-ties, and in the original P. L. Travers books, she can speak baby. Mary Poppins as a Time Lord is such a popular fan theory it's almost banal to even bring it up.Since Disney won't be letting the rights go any time soon, this is a moot point; however, the theory is precisely the kind of thing that comes into play when licensed characters cross over in comic books, like when Robocop vs. Terminator revealed that Alex Murphy's cyborg body was to become the prototype for Skynet. Make Mary Poppins vs. Doctor Who happen, Marvel!
His Name Is "42"
There are numerous connections between the universes of The Hitchhiker's Guide to the Galaxy and Doctor Who - novelist Douglas Adams contributed to the show as a writer, there's at least one alien in common, and the Heart of Gold resembles the TARDIS in many ways.
And both universes have an ultimate question. In THGTG, the characters only know the answer, and it's "42." In Who, they know only the question, and it's "Doctor Who?"Therefore, the name of the Doctor is 42.