• What if Leonardo hadn't been an artist?
• What if Leonardo never liked art?
• What if Leonardo hadn't even been born?

Well, we would not have the popular painting we have today, art would not be as popular, and we would not enjoy art as much as we do today. In my opinion, he is the best painter to ever live, but others say he is not. I say that Mona Lisa is the best painting by him, but, that is my opinion. He also likely changed our culture.