Heh. They’re not like that at all, they’re very informal.
When I was writing ACTION, I showed up at the Super-summit with a big notebook full of outlines, plans and charts, and no one else brought a thing, it was just a discussion that I WAY over-prepared for.
I am sure bat-summits are bigger, but we were still doing most of it through email.
They don’t last days, either, we did the Super-summit in about ninety minutes, I think.