Three Hypotheses of Human Interface Design

Interesting stuff, though I don't believe for a pico that this person is the first to think of it. I wonder if that is why I prefer IMs to email. (But probably not. There's another psychological pressure at play in my own personal case.)

I still don't see the point of Twitter! That's a fine example of what seems to me to be something streamlined to the point of inutility. But can I argue with the popularity...?