That's a tough question. Most of the things we consider art have been created with the idea of being shown in society because they are a reflection of it. In one way or the other, this necessity of social connection is entwined in the meaning of art.
I think that literal art in caves was made with the idea or history and identity preservation. Also, a person in isolation might as well produce it as a form of expression whether this person knows it is art or not. But I guess the social factor is always implicit. There's the need for other people to be touched by this work in order to be considered art. It is similar to this question of the tree falling down in the forest with no one to hear it fall.
Society is a lot of building blocks we tend to rearrange every once in a while hoping someday we could make something that suits everyone; but inevitably, we know that we will be changing something for eternity.
Maybe, but if alone, what is the point of keeping history or an identity of self for one self? If it is for memory purposes only, is it art?
Nothing stands still, which is why life and art tend to be a feedback loop that directs our change.
Thanks for adding your thoughts!
Maybe not only memory, but keeping sanity. Maybe if an archaeologist finds this thing, it may get classified as art. But who knows?
Yes, I have a phrase for that: "Rome has fallen countless times"
It is always a pleasure to bump into a post like this and share some ideas. Thanks for posting!