"Ahhhh." He tilts his head back, touching his tongue behind his upper front teeth in a thoughtful gesture that might be familiar to her. "It's off in its own universe, as far as I can tell -- and that's not far; I don't think most of the locals have much concept of science at all. It's all magic with them, and you have to be a unicorn to have any magic."

And he's still sore about being a boring old earth pony, thanks. Whether he'd want to fly or have magic he's not sure -- though he certainly wouldn't have minded being an alicorn.

"Sorry," he says suddenly, realizing he doesn't know her name. "I'm the Doctor -- and you are?"