“There are 1.5 billion YouTube users in the world, which is more than the number of households that own televisions. What they watch is shaped by this algorithm, which skims and ranks billions of videos to identify 20 ‘up next’ clips that are both relevant to a previous video and most likely, statistically speaking, to keep a person hooked on their screen … YouTube engineers describe it as one of the ‘largest scale and most sophisticated industrial recommendation systems in existence.'” Paul Lewis in The Guardian: Fiction is outperforming reality: how YouTube’s algorithm distorts truth.