We can get some idea by looking at the vast body of works created when copyright was significantly limited compared to today. While there may be a handful of "a

We can get some idea by looking at the vast body of works created when copyright was significantly limited compared to today. While there may be a handful of "artists" who wouldn't end up creating works if they could only profit from them for thirty years instead of a hundred, that is likely insignificant compared to the new works created by building on prior efforts.