Clarke Reynolds, 45, a British artist and writer with almost total blindness, completed the Brighton Marathon in under six hours and twenty minutes without a physical guide by his side, becoming the first blind person to achieve that feat in the history of adaptive sports. His only navigation system: Ray-Ban Meta Wayfarer glasses with a built-in camera connected to Be My Eyes, an app that links people with visual impairments in real time with volunteers from around the world. Ten months of training prepared him for this moment; at the start of the race, Reynolds spoke a voice command and within ten seconds already had someone guiding him. Nearly 300 volunteers from Kansas, Belfast, and Bahrain took turns describing the course through his ears. At kilometer 24, when the effort was nearing its limit, those voices were the only thing that kept him from giving up. Behind him, an emergency guide ran in silence, but the technology never failed. As he crossed the finish line he shouted: ‘We did it.’ He did not say ‘I did it.’