The Quantified SocietyGrades, step counters, KPIs, ratings, review scores: every day we attempt to make sense of the world we live in by quantifying it. Students are as good as their average grade, employees have to achieve SMART goals, and doctors receive patient satisfaction ratings. We compare our scores with those of others and create rankings of the most productive colleagues, the best universities, and the sportiest friends. Berend van der Kolk shows you what