Which I think -- in my personal opinion -- is strong evidence that copyright terms are too long. We (the demos) are supposed to give people a time-limited mono

Which I think -- in my personal opinion -- is strong evidence that copyright terms are too long. We (the demos) are supposed to give people a time-limited monopoly in return for them ultimately enriching the public domain. If the works entering the public domain are spent then we need to adjust the deal until it heavily benefits the pubic domain -- the works should still be culturally relevant, so they should be works that are at most [let's say] 30 years old where a parent could share the cultural experiences of works from their own youth with a child.