Disney is raking its customers over the coals with a 75% price hike for their annual subscription (originally $80.) People wonder why piracy is on the rise.
I think it should be a flat number of years like 20 years, giving the author plenty of time to exclusively control his IP and then afterwards they can still profit because they can still make things from the same IP and sell them to people knowing that they were the founder of the IP.
I feel like the death of the author clause gives a perverse incentive to murder the author so that their IP becomes public domain sooner.
Honestly considering where we are 40 years would probably be a good transition on the way to 20 considering how much corporations today like their 80s ips so making everything made before the 80s public domain could allow a actual proposal like this to not get shot down by corporations like Disney you do bring up a good point with the perverse incentive