[LordOfWolves]

This study quite literally contends that Stone Age artists specifically sought the effects of Hypnoxia and would even use the act of creating such art as an excuse to go "get high".

This reads more like a random theory than a newly discovered pattern of behavior from the past.

Direct link to the study: https://www.tandfonline.com/doi/abs/10.1080/1751696X.2021.19...

[handmodel]

Yeah. Seems more likely that art was made everywhere and that only the art in the caves away from the weather survived.

Perhaps there is no way to make torch small enough to not be deprived of oxygen, but it seems plausible that you'd be fine if the flame was small enough and no one else was there.

I've been in small man-made caves and they are very tiny.