In Modernism, reality used to validate media. In Postmodernism, the media validate reality. If you don't believe this, just think how many times you've described some real event as being 'just like a movie.' ↗
I remember one of my last shows, the Final Jeopardy! clue was something like 'These two boys' names are top 10 boys' names in the U.S., they both end with the same letter, and they're both names of Jesus' apostles.' Now, obviously that's not a knowable fact. ↗