Cognitive Seduction and the "peekaboo" law is along the same lines.
The concluding paragraph gives a bit of an overview of the idea of the post
Whether you're trying to get someone's attention, keep their attention, motivate them to stick with something, or help them to learn more deeply and retain what they've learned, leave something for their brain to resolve. Do something to turn their brain on.
As I was thinking about it after reading, I felt it does kind of conflict with the idea of making a site work so well, you don't have to think about it.
The visitor might achieve the particular goal that one time, but have you eprked their interest? Is there mroe to discover, to find out?
If people aren't engaging their brain when they visit, are they going to rmemeber you afterwards?
Are they going to find some of the cool other stuff you have? Or have you made it so easy for them to do their one little thing that they don't notice anything else.....
I guess this also comes under the Captology discussions that we've had a couple of discussions about here as well, and another recent, well linked post by Kathy teams up with it a bit. Dilbert and the zone of mediocrity