Doctor Who has never pretended to be hard science fiction…At best Doctor Who is a fairytale, with fairytale logic about this wonderful man in this big blue box who at the beginning of every story lands somewhere where there is a problem.
I don’t know what it’s like to be God — obviously …until that very first moment when you get to sit down and type the words in your script: INTERIOR. TARDIS. … Suddenly I got a very good idea of what it must feel like. I went: “I’m writing it now this scene in the TARDIS. I’m writing it!” And that was amazing, it was wonderful.