I can stare at my CCFL ThinkPad all day, but if I stare away from it at around 75-80° (basically not quite 90°, so say around 2PM on a clock) I can see it flick

I can stare at my CCFL ThinkPad all day, but if I stare away from it at around 75-80° (basically not quite 90°, so say around 2PM on a clock) I can see it flickering away. But if I stare straight-on it's fine; it feels completely steady, and certainly more rock-solid than any CRT. My light emits a (very) tiny amount of light when it's initially turned off. If I stare straight at it I can't see this tiny bit of light at all; I can only see it in my periphery. I suspect my inability to see flickering works by the same mechanism - and I'm very glad for that! Incidentally, when I was using CRTs I had to have them at 85Hz to hide the flickering as much as possible. 60Hz would drive me nuts - but then again, I used 60Hz for several years while using MS-DOS, so I think 85Hz was just a strong preference. This may be interesting to some: https://news.ycombinator.com/item?id=15004608#15005811 https://news.ycombinator.com/item?id=15004608#15005811 (the whole thread, along with the highlighted comment)