"The Most Powerful Idea in the World" basically makes the case that intellectual property is what enabled the Industrial Revolution. I won't try to summarize or defend the entire thing here, but I think it makes a very compelling case that the notion of "owning ideas as property" was the thing that made Britain unique (among other factors of course) and led to runaway technological explosion. It points out how in earlier times, inventors were literally killed for coming up with better methods that threatened some established system. So there is a big difference between art and technology there, and while I think debating the merits of copyright as it pertains to art is valid (and 100% agree it's overdone in our current system), I'm not convinced the current issues are serious enough to undermine the entire concept of intellectual property.
