[greycol]

For works released in someones lifetime the effective limit is effectively infinite for ~25% of people based on actuarial tables and assuming the best case of the author published it the year you were born and died that very same year. If the author died when the reader was 13 that's less than 50% who will ever live to that point.

If the author is anonymous(or work for hire) or lives for 20 years after they published the work then it is effectively infinite for ~91% of people assuming the best case.

Say what you want about the old 14+14 system but at least it would have meant that by the time you were a parent you could almost certainly share the works that were influential with you as a kid with your kids. With the current system you have to cross your fingers that it was popular enough to remain in print rather than moving to some limbo of unable to be acquired except 2nd hand or illegally.