relevant tangent: A few years ago there was an experiment where the same speech sound was heard completely differently by young and old people. e.g. Young people heard "I like cake" and old people heard "pickles are tangy". The reason was old people have lost their high frequency hearing and the scientists tweaked the sounds so as old people would hear one phrase and young would hear the other. This is like what social media are doing, they're filtering the speech of the public so it sounds like something different than what the public is saying. (perhaps not the best analogy but still interesting...)