Take some of this with a huge pinch of salt. I have my doubts. It sounds just a bit too like the sort of comforting thing that Steve Silberman would have us believe about us being part of the future. Although the obvious shift in the technical ability of the artists is most interesting. i seem to remember reading somewhere that some psychologists view these caves as sort of dream sites/meditation chambers in which artists could achieve higher levels of consciousness and depictive ability. I can easily relate to that.

https://en.wikipedia.org/wiki/Cave_painting

"A 2018 study claimed an age of 64,000 years for the oldest examples of (non-figurative) cave art in Iberia, which would imply production by Neanderthals rather than modern humans."

https://www.independent.co.uk/news/science/archaeology/prehistoric-autism-cave-paintings-barry-wright-penny-spikins-university-of-york-a8351751.html

Prehistoric autism helped produce much of the world's earliest great art, study says

This is interesting, thanks senior moment. 

This is interesting, thanks senior moment.