It was recommended to me much earlier that good ambient daylight-like lighting improves productivity and reduces stress on the eyes. The latter is because bright screens only in an otherwise comparatively dark room stresses the eyes when switching or adjusting between screen and background.
What was the argument for the former? The latter makes no sense to me. If you only have bright light, then you're only stressing the sphincter of the iris. If you switch between brightnesses, also the dilator gets work and the sphincter gets to relax for a while.
These of course depend on how bright or dark we're talking about.
This is the public group instrumental rationality diary for November 16-30 (that I've now fished out of my drafts folder, *cough*.)
The poll earlier this month seems to be sufficiently in favor of maintaining the current schedule that extra votes are unlikely to change things much, but if you'd really like to register your opinion, you are welcome to do so here.
Thanks to cata for starting the Group Rationality Diary posts, and to commenters for participating.
Immediate past diary: November 1-15
Rationality diaries archive