Chinese company Yealight makes a ceiling light that simulates a skylight
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These have been around for at least a decade, maybe two. It's hardly a novel concept. Yes, they're potentially a crutch for buildings with spaces that don't get (enough) natural light... but they also do so on overcast days too.
IIRC similar lights are also common in Arctic regions, where the "night" can last for a couple of months straight.
Yeah. I would love something like this for the long, dark winter.
Same, but metaphorically and without serotonin hangovers.