LOS ANGELES—The grave implications of his vanity dawning on him, local man Ed Paitz realized what an arrogant fool he’s been after skipping the moving walkway at Los Angeles International Airport, sources said Thursday. “My god, what have I done?” said a despairing Paitz, realizing that, alas, he must live with the sorrowful consequences of his own hubris and proceed down the carpeted corridor on his own two feet, watching in shame as other travelers with the humility to board the conveyor platform flowed past him with ease. “My pride—my accursed pride—has brought me to this! Like Icarus and Arachne before me, let my tale serve as a warning to all those who would surrender to the vile temptations of the ego.” At press time, redemption lay at hand, as the moving walkway was ending with a small gap before the next one began.

GUN violence in America gets plenty of attention, but cars kill more. Around 40,000 people a year die on American roads, more than all fatalities caused by firearms (of which two-thirds are suicides, not homicides). The death rate in America, around 12 people per 100,000, is more than twice that of western Europe. The grim toll of motor-vehicle deaths is widely seen as unavoidable, given that the United States is a large, sprawling country primarily designed around the automobile. However, around a third of these deaths involved drunk drivers, suggesting that there is, in fact, substantial room for improvement. And fortunately, it appears that the advent of ride-hailing apps like Uber and Lyft has had a welcome impact on road safety.

According to a working paper by Jessica Lynn Peck of the Graduate Centre at the City University of New York, the arrival of Uber to New York City may have helped reduce alcohol-related traffic accidents by 25–35%. Uber was first introduced in the city in May 2011, but did not spread through the rest of the state. The study uses this as a natural experiment. To control for factors unrelated to Uber’s launch such as adverse weather conditions, Ms Peck compares accident rates in each of New York’s five boroughs to those in the counties where Uber was not present, picking those that had the most similar population density and pre-2011 drunk-driving rate.