Bobby Duffy

Do you eat too much sugar? Is violence in the world increasing or decreasing? What proportion of your country are Muslim? What does it cost to raise a child? How much do we need to save for retirement? How much tax do the rich pay? When we estimate the answers to these fundamental questions that […]

Do you eat too much sugar? What proportion of your country are immigrants? What does it cost to raise a child? How much tax do the rich pay? Are we more ignorant than we used to be? Take a minute to answer these questions. No matter how educated you are, this book suggests you are […]