The internet's perfect for all manner of things, but productive discussion ain't one of them. It provides scant room for debate and infinite opportunities for fruitless point-scoring: the heady combination of perceived anonymity, gestated responses, random heckling and a notional “live audience” quickly conspire to create a “perfect storm” of perpetual bickering.

Things like social media and the Internet, of course, it's not going away. There is no cure for it. And this shouldn't be just like there shouldn't be, you know - it would have been a tragedy if there was a cure for the printing press. I think it's just that it's an amazing tool that we as a - as an animal are just getting to grips with because it's like we've grown a new ultra powerful limb and we're learning how to use it.

Technology by default became the thing that was a new thing that had swept in and was altering it everything.

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.

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"]."

I'm more pro-technology than people probably realize.

I think somebody's marketing a thing that Hoovers up your Twitter and it will continue tweeting for you after you're dead. I have no idea whether they saw "Be Right Back" or not.