The document discusses why data is valuable. It explains that data is valuable because it can: 1) Improve the likelihood of making good decisions by removing bad options and reducing uncertainty. This decreases risk and cost, leading to more efficiency and value. 2) Increase measurement of decisions in order to improve accuracy and precision for next time. 3) Help reduce the uncertainty of decisions through examples like choosing the best commute option, making data valuable by lowering the chance of a "bad" decision with costly outcomes.