I like the idea of renewal at a creator-set price. Every 10 years, declare that your work is worth $x, then pay a renewal fee of $x/10 (or some other fraction

I like the idea of renewal at a creator-set price. Every 10 years, declare that your work is worth $x, then pay a renewal fee of $x/10 (or some other fraction based on more solid economics). If anyone volunteers to pay more than $x in place of your $x/10 your work is now public domain.