While the summit was billed as possibly "the most important day of your life," the talks were less in-depth than I had expected. Dustin Giallanza; Getty Images; Chelsea Jia Feng/BIBryan Johnson brought his "Don't Die" summit to Singapore in mid-September.Over the past years, Johnson, 47, has made headlines for his $2 million-a-year quest to reverse aging.The event included booths set up by companies offering "longevity-focused" services like blood testing and ice baths."If anyone's wondering how my morning at the longevity summit is going, it's 10 a.m., and I'm raving with a shirtless Bryan Johnson and, I think, his son," I messaged my colleagues.It was the last thing I'd expected to do on a Thursday morning in September, and yet, here I was, awkwardly fist-pumping with the crowd as purple and red lights pulsed overhead.At least a hundred people were shimmying on the makeshift dance floor in an auditorium as tunes such as "Gasolina" and "Taki Taki" blared.