The gist is, good interaction designers “sketch" out interactivity (often by making interactive prototypes), and they think about aesthetics. Or, to put it another way…
I’m not actually sure if I agree, but I like the focus on making things that demonstrate the interactive stuff, and also the understanding that how it looks matters.
The problem is, by this definition, a lot of the interaction designers that I know are not that “good." Many of them don’t have a very sophisticated aesthetic sensibility. And even more of them don’t regularly sketch out their ideas in a form that’s interactive. (They fall back on static wireframes and then use their words to try to create that sense of interactivity instead.) And of course, by they I mean me.
So maybe I’ll take this as a challenge. Start getting dirty with the concept of clickable sketching. And also, uh, get more, um, aesthetic? Yikes, I think I need to take some typography and color theory classes.