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.

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 think more and more people became aware that social media was starting to feel like a more toxic space. And, I mean - quite a lot of incidents of people getting very, very angry about all kinds of things and attacking people.

The difference between smartphones and cigarettes is this: a cigarette robs 10 minutes from your lifespan, but at least has the decency to wait and withdraw all that time in bulk as you near the end of your life - whereas a smartphone steals your time in the present moment, by degrees. Five minutes here. Five minutes there. Then you look up and you're 85 years old.

What we were also trying to do is vary the tone slightly across the season of Black Mirror, because there are six stories this time around, so you don't want it to just be the devastating, bleak-em-up.

[The rumor that David Cameron maybe once did this unspeakable thing with a pig's head] it was freakish and weird. It seemed such a coincidence that I couldn't quite process it. And then, as it sank in, I genuinely had the thought, "Am I living in a Truman Show sort of VR simulation designed to send me insane?"

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.