That reminds me of a joke about the stuff; something along the following lines: "Billy, if you insist upon continuing to masturbate over porn you will go blind." admonished his father. "Well, ok Dad, but what if I keep doing it just until I need to start wearing glasses?"
LOL,,,That really is some incredible art. I remember when this kind of thing first came out, there was an exhibit in a Mall, people gathered around one and said,,,Wow,,look at that ship that is in the painting,,, My answer was the same then,,,,,,,,,,,,,,,,What Ship? hahahahahah