For a long time, I have been fascinated by Zimbardo’s work. Not just the famous (or infamous) Prison Experiments, but his other work. A common thread running through his work is the concept of “situational control” or the idea that individual agency plays a lesser role, and the structure of the situation plays a greates role in determining human behavior. What does situational control mean for design and designers?
Read an article I just posted on Uzanto.com: Roller Coasters vs. Driver’s Seats: Design and the Concept of Situational Control
Rashmi's blog 
great article. like the breadth of coverage.
I will have to think about where on the spectrum of situational control I like to design.
keep writing.