It's changed the content that an average person has access to without replying on what as being distributed locally. It has allowed those that would have never been able to get wider distribution of their content, those producing niche material to access a big enough market to make their projects viable.
So it may not have changed the content on the whole but it has certainly changed the content that most people are actually able to experience.
Ability to experience mayn't align with actual experience; while radio could've increased music diversity, it's effect seemed ultimately homogenizing, and the same may be true of online content.
Could you explain your analogy in a bit more detail? Google Maps is like pornography, and ... what ... is like sex? Physical paper maps? (I'm not seeing the big difference compared with electronic ones.) The actual full-size terrain itself? (OK, sure, but that's a bit tricky to carry around with you and use for route planning.)
Earth serves as an effective spacecraft, we're just running low on supplies and making a mess of it; the economically and ecologically optimal move is migrate mining and industry to heaven.
