Hidden interface controls that affect usability

Interesting article. Some points I didn't quite agree entirely with. There's a cost and practically limitation to some things (like a physical knob in a car for zooming in and out on a map - although that was probably just an example of intuitive use).

I just recently switched a toggle on a newly installed app that did the opposite of what it was labelled - I thought the label represented the current state, but it represented the state it would switch to if toggled. It became obvious once changed, but that seems the least helpful execution.

About the scroll bars: Also stop making them so thin that I have to have FPS skills to hit them! Looking at you, Firefox! (And possibly what standard CSS allows?) Yeah, I can scroll, but horizontally the scrollbar would be more convenient than pressing shift with my other hand.