Every decade has its own genre, or direction. Unfortunately we have already seen the psychedelic, nonsense that put half the nation on the brain transplant list with lyrics that you can only understand on drugs (60's), we have seen the self-proclaiming era, where music was about the musicians or war (70's), we have been through the 80's hairbands rocking out and singing about every sexual innuendo imaginable, and the grunge era in the 90's are focused on anti-government campaigns and and a little bit of each previous era. Of course i am stereotyping, not all the music fit that genre, but you get the idea. Today's music is more "emo" (if you will) because no-one knows what to sing about anymore so they whine because they cannot be originals, and just want to cry to someone because they cannot be the best. That's about the just of it.