feature Braintree's Bryan Johnson is Looking Ahead to Frontiers Unknown In a quiet office park in Venice, California, blocks from the Pacific Ocean, a color-shifting door is emblazoned with a famous quote. Volunteers wanted for hazardous journey, small wages, bitter cold, long months of complete darkness, constant danger. Safe return doubtful, honor and recognition in event of success. There’s no company name listed on the building, just this sole hint at what lies within. Sweating in the Southern California sun, you’d be forgiven for failing to associate polar explorer Ernest Shackleton’s early 1900s call for courageous adventurers to join his Antarctic expedition with whatever awaits on the other side. Would you dare to step inside? Then head up the stairs, past the laboratories where 47 engineers and researchers (28 of them PhDs) carry out complex neuroscientific work with a zen-like focus and intensity, and past the wall of framed photos of scientific heroes including Marie Curie and Isaac Asimov. Greet Bryan Johnson, ’07 (XP-76), the man determined to explore the depths of your very mind and help save humanity from its direst threats.