Every time we check our feeds we create safety bubbles around ourselves. Thanks to technological algorithms, we are living an increasingly narrow existence, one in which the news we read, the products we purchase, and the people we interact with are tailor-made for each of us. We might feel informed and comfortable, but we are isolating ourselves from anything outside our bubble. Are online filters just an efficient way to connect, or do they spell the end of democracy? Anyone who has read this book will understand the potential dangers of a society whose assumptions are never challenged.