I n person, they did not seem quite real. Gathered on a blue carpet under bright lights, inside a $50 million Las Vegas venue that had been built just for them, the athletes of the Enhanced Games—colloquially known as the “doping Olympics”—looked like action figures. When they stood next to other people, the effect was different but no less uncanny; it was as if they’d been Photoshopped, blown up 25 percent compared with the rest of their species. They were here competing in three sports—