It would be useful, but not nearly as useful as the uber productive society we live in today.

In the past they merely would have made good guards around the camp/town

The main limiting factor is, how productive can you be at night?

Quite

3,000 years ago?

Today we have lightbulbs

You can train night vision

To read in the dark?

Yep

Bullshit

I do

It wouldn't be something reliable.

moonlight for maybe 25-50% of the time

And you'd strain your eyes. You could read a report, but reading a book.

Moonlight...

Go out and pitch a fucking tent, and read in moonlight.

well I'm not suggesting reading

Don't be so fucking silly

there are better things to do at night

with sufficient light from moon

With how many people it requires to do useful activity's and the risk of harm or unjury its just not worth it.

Maybe you could do it as a one off thing, but consisting finding a productive activity to do a night? Name 1

no you have to go all out during the daylight because there isn't time to waste

so if you have night time to reflect and improve strategy, bigger returns moving forward

but that would be assuming your brain isn't doing similar things while you sleep

🤦🏻

waking hour optimizations might be inferior to what occurs in sleep

also anything in the arts/sciences etc would be productive at night

In 3000 bc?

I would argue thats when it was most critical

I can only think of astrologers

And they could simply sleep in the day

agriculture and stationary lifestyle didn't design itself

sorry engineering is too gay for 3K BC

It designed itself during the fucking day, when people can see the bloody stones they are meant to be stacking.

yeah but that has nothing to do with sustainability

people designed systems to adapt no longer being nomatic

How the fuck is that related to working at night?

Clearly, semiAuto, you don't think at night.

night hours are the best design hours

No