One thing you can hardly help learning from a study of art history: what passes for art today is pure crapola.
Here’s proof (if any were needed).
In the Age of Nothing Works, why should we expect the arts to fare any better than the rest of our poor, wretched, failing civilization? It’s too bad: there are still great artists out there. But you won’t find them in the art galleries, selling pretentious twaddle to airheads with more money than they need.