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>Pretty sure this is all snake oil — both f.lux and Night Shift. I don't doubt that blue light affects our brains. But I see no evidence that color filter software has any impact.

A color filter such as in Flux and NS removes blue light.

>If the issue is the number of blue photons per square millimeter of our retinas, why isn't it being discussed as such? This means screen brightness and distance from your face would have a much bigger impact than a color filter.

No, it doesn't mean that at all.

Or rather, it does, but it's a moot point. All you're saying is: you can reduce blue light with an orange filter, but you can also go away from your screen or dim it so you can't see it. Or even not use a computer at all.

While all of those things hold, the "orange filter" achieves the same thing (removing blue light) without affecting our ability to work regularly on the computer (increased distance, less brightness, etc).

I'm not sure how people come up with such logic errors.

>FWIW the only person I've known to use f.lux is an insomniac who barely ever sleeps and is always tired.

It's not worth much. It's not supposed to cure insomnia (which has 2000+ different causes), just to keep up with the natural light changes and improve sleep.



It would help if it could dim the displays over HDMI whatever or some driver mechanisms




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