Can a machine learn from the mistakes of others? Can it at least learn from its own mistakes?
The Credit Score is a classic example of predictive analytics. A pile of information about you and your financial history is mathematically combined into a single number, your “credit score”, that purports to predict your future behavior. Paying your debts, etc.
See the website smalltime.com for an amusing illustration of a decision tree, wherein you assume the guise of a dictator or a sitcom character, and the computer attempts to determine who you are.