I (in my meanderings after with what to replace my current backache-inducing home-office chair) was a bit surprised to run across a 2000 article of Stirling’s discussing the importance of good office chairs and his quest to find the “State of the Art in Sitting”.
http://www.wired.com/wired/archive/8.07/chairs_pr.html
Interesting design discussion, indeed. Plus, what an attention-grabbing (to me) opening line: “The New Economy is fundamentally about sitting on your ass…” Inspires me to look this guy up more often.