10 Doctor Who Fan Theories Better Than What We Got

The sonic screwdriver has been the Doctor's greatest (and least trustworthy) ally across its long existence.

Debuting all the way back in 1968, the screwdriver is used to unlock doors, scan stuff, and for basically everything else that the Time Lord wants it to do.

Or, more accurately, what the writers want it to do.

The Doctor's over-reliance on the tool has become a real bugbear within the Who fan community. Equally, the trope of the screwdriver breaking at an inconvenient time has become a tiresome way to artificially generate drama.

But what if these two things are linked?

That's what BonglishChap thinks over on Reddit. They posit that the screwdriver has had so many different alterations made to it over the years, that it is now overloaded. As a result, it works on an extremely inconsistent basis.

It would be great if this were true, as it really makes sense as a theory. Equally, any answer as to why the device is all-powerful one minute and then broken the next would be a welcome addition to the show's canon.