Is it our brains or is it modern music that creates songs that so easily lodge in our heads on repeat?

If your Facebook newsfeed is like mine, endless variations on "...thinks no one should die because he or she cannot afford health care, and no one should go broke because he or she gets sick" have been scrolling down your screen all day. My kneejerk reaction to this new meme was, I'll admit, a crusty cynicism -- status updates don't have votes in the Senate -- but at the same time we should recognize that this sort of identitarian signaling behavior is an increasingly important part of what we "millennials" understand as political-cultural engagement.