Feedback loops. You exhibit some type of behaviour (you drive at 27 mph in a 25 mph zone). You get instant real-time feedback for it (the sign tells you you’re driving at 27 mph). You change your behaviour as a result of the feedback (you lower your speed to 25 mph). You get instant feedback for that decision too (the sign tells you you’re driving at 25 mph now. Some signs flash up a smiley face emoticon to congratulate you). And it all happens in a flash of an eye – in the few moments it takes you to drive past the Your Speed sign.
