Earlier this month, I traveled to Montenegro for a gathering of longevity enthusiasts, people interested in extending human life through various biotechnology approaches. All the attendees were super friendly, and the sense of optimism was palpable. They're all confident we'll be able to find a way to slow or reverse aging--and they have a bold plan to speed up progress. Around 780 of these people have created a "pop-up city" that hopes to circumvent the traditional process of clinical trials. They want to create an independent state where like-minded innovators can work together in an all-new jurisdiction that gives them free rein to self-experiment with unproven drugs.