Earlier quoted context omitted.
Why not just 30 years? Patents get a flat 20. Not that I'm arguing for 30 per se, just that I don't see what goals of copyright would be advanced more by adding an "or until death" complication.
For inventions if you don't make money off it in the first 20 years you are unlikely to ever make any money off it - as the invention space moves on. That's not the same for a work of fiction or a piece of music. Case in point apparently books sales for the Odyssey are massively up - when it was originally written in 7-8 BC :-) Also most books etc don't make much, if any money - an publisher/author might rely on a th…
And it was written without copyright. So why should the rest of us give up part of our free speech rights for longer than 20 years in order to enrich authors, when its proven that we can get great works without doing that?
The question is not whether longer copyright ever lets authors profit more, it's whether society benefits as a whole.