So Matt Smith is not at all what I was expecting — and this is good! In terms of his personality and mannerisms and appearance, he seems to have beamed in from his own universe. Combine that with the practical thematic aspects of going so young, and it really does feel like the character’s portrayal is getting rebooted. Or brought in a completely new direction, anyway.

Combine this with Moffat’s comments that he intends to focus on the logistics and consequences of time travel, and series five is starting to sound pretty fascinating. I don’t know what to make of it! I can only imagine.

Young, mercurial (as Mr. Hellman puts it) man who calls himself “the Doctor” (uh-huh…) and claims to be hundreds of years old. And who keeps getting involved in time paradoxes…

David Hellman thinks an older, more intellectual woman would make a good companion. I’m inclined to agree!

For a first episode, I’m thinking maybe of An Unearthly Child II, set in a university. A fortysomething college professor becomes fascinated by one of her students, and… oh dear, this is turning into a bad fantasy, isn’t it.

Thing is, for all the bravado he projects and all his knowledge, the Doctor is emotionally underdeveloped. And needy. In a way, shaping him as a very young man — which he is, in spirit — who has seen far too much, and is far too clever for his own good, is a good way to address the character’s demons. To allow him to mature somewhat, and move on.

Moffat, more than any other Who writer so far, seems interested in exploring what makes the Doctor tick. And this is a great opportunity for that. Giving him an older female companion who can take care of him as well as she can fend off his intellectual spurts and tantrums — well, it’s kind of a natural evolution of a theme, isn’t it?

Donna was very good for the Tenth Doctor, in part because of the standards that she held him to; similar deal with season-one Rose, and Ian and Barbara.

That would be so interesting: basically exchange Susan for the Doctor himself, and pair him with a new Barbara, and send them off to figure out what it actually means to be a Time Lord. Logistically and emotionally.