books, movies, music and blog posts are information. Information is consumed when assimilated. That's why you have every decade more profit from movies, people are hungry for more information/entertainment. That's why you have relative bad songs that break into billions views vs old songs that are very good and barely have millions view - people are hungry for more information/entertainment. That's why relative bad books like Twilight get screen time and make billions vs Alexandre Dumas who is public IP and yet no new movies based on his books are made - people are hungry for more information/entertainment. And blog posts, ohh, I read several (The old new thing, Schneier, etc) and you know what I always say about those? They post too few - I am hungry for more.
It isn't; everyone could watch the same film on the internet, it's not limited in supply, it's not dependent on printing or shipping or factory production line. Once there's enough film for everyone to watch for a lifetime - say 1M hours to cover 24/7 watching for 100 years, what need is there for more film?
What you describe is that people are hungry for novelty. Not more, or better, just newer. Yet there's enough books and films and songs already in existence that we could spend a lifetime exploring and not run out.
How do you balance the claimed 50/50 production/consumption when there's already enough media for everyone's consumption for a lifetime, in libraries, today?
How do you apply that to something which is not used up as it is consumed, like a book, film, blog post, song, etc.?