i mean, the other thing that really interested me in his story as i started to research it, and i was given the book american prometheus, which is the book that i'm adapting. it's by kai bird and martin sherwin, and it's 25 yea rs of research. it won the pulitzer prize. it's a very authoritative source, and it lays out the events of his life in very compelling and great detail. and there are a lot of different things that you come to that sort of hook you. i mean, one of the first was... because you can debate the notion of, you know, "how important is oppenheimer to nuclear weapons? would they would it have happened without somebody else have done that?" another universe, put it that way. when you're reading american prometheus, you come to the bit where you realise that los alamos, you know, which has become this laboratory devoted to production of nuclear weapons.