I remember years ago reading a book about cave paintings. It was an unusual book. I can't remember the title and am not going to work too hard on recovering information about it, but I'll just write down here what I can remember, for fun. The writer seemed to be a Marxist, though of a specifically unorthodox kind. He disbelieved in the traditional Marxist notion of "primitive communism," that is, the quasi-Rousseauist idea that there was a time in human history before private property, surplus value, or class conflict. The rise of the ancient slave societies (on this trad-Marxist view) was over the dead body of those more primitive communities. But the book I was reading said that Marx was wrong in this, that there was a class conflict underway even among the cave dwellers, and that the famous admired cave paintings are evidence of it. I don't remember the particulars of the argument, but IIRC at all, the author was telling us we shouldn...