Oh, all right, I'll come clean. This is an arts column. I've never met or talked with an Oxford cancer research scientist. Actually it's my computer that does the re-search. Every time it's turned on and I'm not using it - and that includes the fractions of a second between key strokes, as well as the prolonged pauses for thought and meditation that are such crucially important parts of a writer's work - the computer is doing cancer research.