I'm actually quite pro-technology, but I'm a worrier, so I like to envision worst-case scenarios.

Obviously, you try not to repeat yourself so that forces you to re-evaluate what you're doing constantly [in Black Mirror].

Online you're encouraged to perform one personality for everyone.

I pitched Jay Hunt the opening scene (prime minister, middle of the night, he's woken up...). She paused, and then she laughed. She was very intrigued and all that, and then she said, "Does it have to be a pig?" So we went through various options: Could it be a supermarket frozen chicken? A giant wheel of cheese? A pig seemed just the right level of absurd, but then when he walks in and there's actually a pig there, it's awful.

[British television series] Hammer House of Horror. I used to really enjoy these one-off stories where often there would be an incredibly cruel twist. A good example is the episode with Burgess Meredith and there's a nuclear war and he drops his glasses. To this day, you can show that to anyone and they'll go "Bwrrrrrrrr!" You know, sort of wander away shuddering.

If technology is a drug – and it does feel like a drug – then what, precisely, are the side-effects?

The news might be single-handedly trying to bring about an environmental catastrophe, which it will then report on. Super injunctions are interesting legal weapons really, they don't just gag the press, they gag them from mentioning the existence of the gag. Sport belongs in a news bulletin about as much as a mummified cat's head belongs in a Caesar salad. Combine the "mounting pressure" with the "growing cause" and you've got yourself a "media whirlwind" which you can also refer to.