TikTok Has Changed Everything, Especially Book Publishing | Observer

TikTok, it has become almost hard to remember, began a few short years ago (2016) as an app for sharing videos of yourself lip-syncing music and dancing. The extremity of its success (it reached one billion users in September and has been the world%u2019s most downloaded mobile app since early 2020, with nearly half of its American users occupying the coveted under-twenty-five demographic) owes something to the universal seduction of music, and quite a bit to a concert of small technical features that make it very easy and effective to use, but most of all to its famously irresistible recommendation algorithm, which measures minutely what you respond to and trawls through its vast bank of freely surrendered videos to serve up for you what you may not even be aware you like. Digital advertising has long sought you out for characteristics you inadvertently disclosed in your online life; TikTok does the work ahead of time by hiving you into ever-more-specific niches. In contrast to previous social media platforms, which were, by definition, social, encircling you with the decisions of people you had chosen to surround yourself with, TikTok opens the tiny window in your hand to the entire inexhaustible world.