" Here’s how a filter bubble works: Since 2009, Google has been anticipating the search results that you’d personally find most interesting and has been promoting those results each time you search, exposing you to a narrower and narrower vision of the universe. In 2013, Google announced that Google Maps would do the same, making it easier to find things Google thinks you’d like and harder to find things you haven’t encountered before. Facebook follows suit, presenting a curated view of your “friends’” activities in your feed. Eventually, the information you’re dealing with absolutely feels more personalized; it confirms your beliefs, your biases, your experiences. And it does this to the detriment of your personal evolution. Personalization—the glorification of your own taste, your own opinion—can be deadly to real learning. Only "

― Michael Harris , The End of Absence: Reclaiming What We've Lost in a World of Constant Connection