Thundering bass rattled the dance floor as a sea of sweat-soaked revelers threw their heads back and belted in unison: “Let’s make the most of the night like we’re gonna die young.” The irony was impossible to miss. Just hours earlier, many of the same people had been on a mission to outsmart Father Time, packing into lectures on longevity science, testing cutting-edge health technology and trading tips on how to add years — if not decades — to their lives. But when celebrity DJ Steve Aoki