>Even phones and laptop screens are luminous now that you need to keep them at 50% or smth if you're not using them while sunbathing on the beach. This is for

>Even phones and laptop screens are luminous now that you need to keep them at 50% or smth if you're not using them while sunbathing on the beach. This is for good reason: so you can see them in daylight. The difference between nighttime and daytime illumination is orders of magnitude; we don't perceive it that way because our eyes are adapted to adjust to lighting levels that are orders of magnitude different. These devices need very bright screens if we want to see them when we're walking around outside. They're supposed to have auto-dimming functions so they turn down when you're inside or it's nighttime, but unfortunately many devices seem to have lousy auto-dimming algorithms.