Monthly Archives: June 2015

Fast money, slow data

The other day I bought lunch from a food truck on the Harvard campus, paying with a debit card that my server swiped through one of those little plastic doodads attached to an iPhone. Ten minutes later, while I ate … Continue reading

Posted in social science, statistics | 5 Comments

Traffic Jams in Javascript

Building bigger roads can make traffic worse. The usual explanation for this counter­intuitive and counterproductive outcome is that bigger roads attract bigger shopping malls, which in turn attract more cars. But that’s not the whole story. In the 1960s Dietrich … Continue reading

Posted in computing, featured, mathematics, modern life | 12 Comments