Gatiss: The most amazing thing is that reasonable-sounding people have asked, ‘Which of the three theories was the truth?’
Moffat: To which I always reply, ‘The middle one.’ It was an unconvincing dummy with a photograph of Sherlock on the front, and Moriarty and Sherlock eloped. That’s exactly what happened.
Gatiss: I won’t name names, but one of the most extraordinary reviews said that we’d clearly been harvesting theories from online, which we genuinely have not. Obviously you’re aware of them. And part of the reasoning behind making the fake explanation at the beginning as outrageous as possible was precisely that: what could be the most ridiculous explanation? But one very respected reviewer actually said, ‘They’ve even put in the popular online theory about the squash ball.’ It’s like, ‘No, that’s how he did it!’ I was gobsmacked by that.
Moffat: There’s only one way not to die, and that’s to hit something before he hits the pavement. That’s it. There isn’t anything else. He’s got to land, essentially, on a big cushion.