I’m part way through the podcast and have never seen Dr. Who, but I did just read SuperFreakonomics and thought you might enjoy this quote about Nathan Myhrvold:

Myhrvold recalls watching the British science-fiction TV show Dr. Who when he was young: “The Doctor introduces himself to someone, who says, ‘Doctor? Are you some kind of scientist?’ And he says, ‘Sir, I am every kind of scientist.’ And I was, like, Yes! Yes! That is what I want to be: every kind of scientist!”