How do we absorb cultural information?

I just started re-reading “Amusing Ourselves to Death” by Neil Postman. Although written in the early 80’s, one of the main ideas in the book is still relevant today. That is, how do we absorb cultural information? As we move away from traditional forms of media to more nuanced online social platforms — what is lost and what is gained? I’m thinking of this idea as I read through the book.