This is very interesting - to see this sort of thing in paleographic studies is very very cool
I remember in my PhD days (studying AI), having long conversations, exploring what it was for an AI to be intelligent. One strand we considered was around language and magic - the central idea we were playing with was that language and magic are intertwined - the role of sympathetic magic in manipulating reality bby manipulating symbols was tied to language as a representation of reality. So the idea of symbolic representation was a key indicator of intelligence.
It would also be amazing if more stone age art was found in underwater caves.