Curious if the introduction of copyright is what led to an explosion of products and innovation. Suddenly people were given an incentive to monetize their ideas. I doubt the renaissance happened due to a lack of copyright. I think it's more due to social, political and health circumstances rather than the lack of protection of one's work. We, in Europe, suffered from disease, famine, war, to the point where we reached the conclusion that enough is enough - we need rules to the game.