I said no such thing. The point of my post is that understanding a lot of art requires context. I gave two examples of the kind of art people here appreciate perfectly well. I also said that contemporary art is often mysterious to me, and described what happens when I go with friends who do have the context. I did not say I fully get the artwork then. What I do have is have some notion of why people appreciate it.
I at no point said, "Gosh, you can understand all art easily after 3 sentences of explanation". Which you should have gotten by analogy; a layman can't get one of the IOCCC entries after a short explanation, and a non-gamer won't really appreciate Upgrade Complete if it's the first game they've ever played. They can get that there's something to get, but they can't possibly fully understand a work in context until they understand the context.
I at no point said, "Gosh, you can understand all art easily after 3 sentences of explanation". Which you should have gotten by analogy; a layman can't get one of the IOCCC entries after a short explanation, and a non-gamer won't really appreciate Upgrade Complete if it's the first game they've ever played. They can get that there's something to get, but they can't possibly fully understand a work in context until they understand the context.