Earlier this week, WIRED ran a story about the new Nike sneakers tied to Breaking2, the company’s attempt to help runners break the two-hour mark at a special marathon this spring. As part of WIRED’s exclusive look at that initiative, our writer took a trial run in the sneakers as part of his training to achieve his own personal milestone: a sub-90-minute half-marathon. I thought we were talking about doping; Haile Gebrselassie thought we were talking about shoes.