So we should subject all works to extreme copyright lengths on the mere off-chance that a tiny fraction of them might still be making appreciable amounts of money decades later? Looks like a total non-starter.
20-years is nothing in the terms of the life span something. If you look at a lot of the authors they spend their lifes writing. Just like you'll spend more than 20-years working, so will they. But it seems you want to hamstright their earning rights. To me it's absolute greed and stealing from the working man.
The entire point of allowing things to go public domain is they is no need for copyright protection anylonger. But if people are still earning their living off of that work then someone would be getting hurt.
And this talk of a total non-starter. You need to explain why 20-years is enough. Because it's 100+ just now. So you're the one on a total non-starter.
No, I'm saying 20 years is too short because it destroys the livelihoods of the already-few creatives who can make a living off of their work, because 20 years is based off of a completely ignorant idea of how creatives earn livings.