I actually had that conversation with [Channel 4 Chief Creative Officer] Jay Hunt. We were at a bit of a crisis point. I'd written a totally different script - about war, basically - that got rejected at the last minute for various reasons. The whole of the series was in doubt. I said, "Well, there is one other idea ["National Anthem"]."

As long as we've still got crazy "what if" ideas, we can continue [Black Mirror]. It's outpacing reality that's probably the challenge.

There's something I find very satisfying about a nice ironic twist.

You sort of perform your personality, I guess, to everyone on some level.

We take things that would have struck us as miraculous five years ago for granted. Like Pokémon Go would have been insane, and now it's just like, "Oh, okay."

It's a barrel of laughs, isn't it? It makes The Day After look like friggin'...insert name of cheerful thing here. It was one of the things that made me really worry about worst-case scenarios. There's something impish and probably somewhat therapeutic about thinking about those things.

Technology isn't the villain and the people aren't often really the villain so much as they're weak.