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.

In a weird way, when everyone's feeling that the world's going to hell in a hand basket, I kind of relax a little more because I often feel like that.

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 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.

What are people going to expect when they sit down to watch a new episode of Black Mirror? And what you're going to expect is somebody with a translucent TV in a drone strike and a robot walking by... or frowning at a phone and going 'aaah! Oh no! I've just deleted my own leg!' or whatever. So I thought well, let's not do that.

A sort of angry populism here in the UK and across Europe, a sort of anti-political mood and what then steps into that place? In one episode [of Black Mirror] you won't have seen, there's a very simple gaming gadget that turns out to be a monstrous idea, which I suspect we will end up doing for real.

I wasn't really aware they were a religious organization for quite some time. But my grandparents were very devout and ran a Quaker meetinghouse and were missionaries at one point.