There are plenty of useful things a metric can reveal. There are even more it can obscure or corrupt. It took me well over a decade of tracking my own life in ever greater detail to fully appreciate this duality, which probably reveals something about both me and the nature of measurement.
Source: [MIT Tech Review](https://www.technologyreview.com/2026/06/19/1138778/inevitable-weakness-metrics-quantified-life-book-review/)