I like the analogy between real estate and copyright. I think a simpler* solution would be to return to limited terms on copyright (say, 14 years), and require

I like the analogy between real estate and copyright. I think a simpler* solution would be to return to limited terms on copyright (say, 14 years), and require periodic renewal by the rights-holder to extend that term. As part of the renewal process, you'd either need to demonstrate active use of the copyright, or pay a fee (or both?). * Simpler from a process point of view. I understand it's probably not simple politically.