I think overseas viewers assume that Black Mirror is written by the Unabomber, essentially - a Ludd­ite, technology-hating, angry old man waving his fist at the App Store.

Creationists reject Darwin's theory of evolution on the grounds that it is "just a theory". This is a valid criticism: evolution is indeed merely "a theory", albeit one with ten billion times more credence than the theory of creationism - although, to be fair, the theory of creationism is more than just a theory. It's also a fairy story. And children love fairy stories, which is presumably why so many creationists are keen to have their whimsical gibberish taught in schools.

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.

I did once leave one of [my kid] watching something on YouTube, something completely innocuous, and I went out of the room and the algorithm kept playing the next thing and the next thing and somehow worked its way around to showing him the trailer for John Carpenter's The Thing - at which point I walked back in. He wasn't happy.

That's not something that we've gone in thinking 'Right! How are we going to examine that now?' It's just when you take a step back you see that they're actually all sort of in that mode.

Generally I know that we've hit on a good idea if there's a moment where I'm going "HA HA HA!" because that's usually my starting point, me laughing.

I'll just immediately automatically, without even thinking, check my phone. And it feels like the same little bit of my brain is being - the synapses are lighting up when I do that.