

All other things being equal, eyes specialized on daylight activity will just be better at the kinds of intricacies needed for shaping the tools, collecting the right materials etc., mostly because night vision is pretty much greyscale for mammals. And would humans even be as likely to start using fire if they could see in the dark? It’s obviously still useful for preparing food, but IDK that I’d choose to place a beacon of light and smoke (smell) in the night if I could see without it.
I’d assume that humans used tools long before they started using fire, because making fire is far more involved than using simple tools. Though this might actually be worth looking up.






I’d say it still counts as diurnal, unless you’re actually sitting completely in the dark (and yes, the screen counts as a light source) Ü
Also, as someone who also is awake most nights, I get the impression that it’s not particular healthy, i.e. is in conflict with our biology.