Maybe not "most", but very important (and seldom described): Environment. Done wasting my time on noise and distraction. "Interaction" is just fine with me,

Maybe not "most", but very important (and seldom described): Environment. Done wasting my time on noise and distraction. "Interaction" is just fine with me, and I can even context-switch pretty rapidly. Unholy levels of stress and requirements to "tune out" a bunch of irrelevant and noisy stuff going on around me? Forgetaboutit. I'm happier shuffling papers in a quiet, peaceful environment, than coding "the solution to the universe" in open space with "George who shouts everything across the aisles" and the very nice Melissa who nonetheless has multiple cube (really, "cubette") meetings everyday while Tayna pounds her (shared) desk constantly in emphasis while on sometimes hours long phone calls. I think a lot of people can be happy doing more and a far wider range of things than they imagine, if the environment is simply right. P.S. Which is by way of saying to employers, if you really want to hire that 10x/rockstar/gets-stuff-done/innovates person, hook them with an assurance they'll have an optimal working environment. And for many, that means a quiet physical environment. And if you're endlessly questioning just where the line is, and how little accommodation you can get away with? You've already lost that person -- sooner, even if they initially take the position.