Human beings have long worked to prolong life and cheat death – but few efforts have been as ambitious, and speculatively optimistic, as the nearly fifty year-old field of cryonics. The scientific pursuit of preserving human bodies at sub-zero temperatures was once regarded with public disgust, but is now gaining new traction – in Silicon Valley. Our guest is Josh Dean, author of Showdog, and contributor to Buzzfeed, where his long-form article “Inside the Immortality Business” was featured earlier this month.