In our Big Data age, the facts are supposed to speak for themselves and statistical data are just the kinds of facts everyone loves. With machine learning algorithms, the likelihood of ever greater reliance on numbers to predict everything from climate change to your next online shopping purchase to which detainees should be released on bail, suggests that all of us should be more informed consumers of how facts and Big Data work. As educators, history offers important lessons on the political context in which facts are produced and why some facts matter and others don’t. These lessons also raise important epistemological questions about knowledge itself. How does the need to simplify complex social phenomenon help and hurt human beings. A scholar once said, the most dangerous predator in the animal kingdom isn’t human beings, it’s categorization.