I think that technology has both introduced new sounds but also allowed an increasingly painterly approach to recording music as you can now paint over what you've done and more and more refine an existing performance.
Poetry seems to have been eliminated as a literary genre, and installed instead, as a kind of spiritual aerobic exercise - nobody need read it, but anybody can do it.
Some of those drawn into the holy war had been secular nationalists only a few years before. If one looks at the biographies of these people, remarkable continuities are revealed.