It was difficult, and yet I was very eager to do it. It was a really odd thing. I really wanted to do that story. I really wanted to write the death of Captain Kirk. I really wanted to do it in the movie.

The flower inside the fruit that is both its parent and its child. Decadent as ancestors. The portal and that which passes. Nuclear devices activated, and the machine keeps pushing time through the cogs, like paste into strings into paste again, and only the machine keeps using time to make time to make time. And when the machine stops, time was an illusion that we created free will.

The creative part, with the writing of it and the vision, and finding the voice of a show and the characters, is much harder to teach somebody. It's like music. You can either play it or you can't. If you can't play music and you really struggle and work hard, you can learn, but you have to have some inner gift to take it to the next level.

When Kirk dies it was very emotional and very strange, in the moment and all the way through the process. I'd read it in the script and I'd always be struck by what I'd just done and what we were doing, and that this was my childhood hero and I was writing his death.

When I finally got my break in TV, as a staff writer, I always wanted to be at the top of that pyramid. I always wanted to make the decisions. I always wanted to be the one that was saying, "This is what the show is, and this is what the show is not. This is where we're going. It's going to be this kind of series." It was just something I always had my eye on, when I started in the business.

As frustrating as it gets, at times, and as frustrating as it is, at times, I don't think I've ever considered doing something else, or not wanted to do it anymore. To me, it's just the greatest job. It's a good fit for who I am and what I want to be.

When we're shooting, I commute to the UK, every three weeks or so, and that's hard. That's probably the toughest, physically, on me. It's a much longer commute than I've ever had to deal with. And then, there are the challenges of this particular production. It's not the kind of show that has standing sets.