Scientific American: I ran a marathon, once upon a time. (If you could call what I did “running.” It took me nearly five hours—you do the math.) Still, I did it: laced up my New Balances, pounded the pavement through five months of training, and then went ahead and finished More

The New Yorker: Shortly after sunrise, on June 14, 2015, a Finnish man named Ashprihanal Aalto stood on Eighty-fourth Avenue, in Queens. At 6A.M., he began running around the block. He passed a playground, some houses, and a technical high school. After half a mile, he returned to his starting More