That's really interesting... Especially in light of the article on HN which pointed to sitting slouching back as being the "best" posture to be in (which is my

That's really interesting... Especially in light of the article on HN which pointed to sitting slouching back as being the "best" posture to be in (which is my preferred posture when coding), and having a good chair where the back tilts might actually help. I do agree with you about the plane thing. When I'm flying redeye from SF to FL, I try to either find an empty row and lay down or lean on the window and sleep. I did sit in a Herman Miller chair before when working for a well funded tech co. and I used to look forward to sitting on the chair and getting in the zone. I was OK, even after sitting for a long period on those. The oddest issue I had then was getting blisters on my back since the chair wasn't a mesh back (it wasn't an aeron) and tended to heat up from me sitting in it for a long periods of time. Although, that happened a few 16 hours day in a row.