Many years ago I read Cliff Stoll's book the Cuckoo's egg where he patiently tracked down a hacker. This is a welcome re-discovery. I call him a waggledancer because he is such a compelling speaker - using distraction and eccentricity to keep you hooked. You honestly don't know where he's going but you can't leave till you find out. And his final point makes sense in the light of the journey he has taken you on. I'd love to do a presentation based on what I've written on my hand but having seen him do it I don't think I would dare. This is waggledancing - making you want to learn.