For a moment, I fell under the spell of Bryan Johnson. Bathed in early-morning sunlight, the 46-year-old L.A.-based tech centimillionaire and longevity celebrity didn’t look much younger than his age, although he claims to have the wrinkles of a 10-year-old and organs that are several years younger than his lifespan. We were standing at the… Continue reading Opinion: This California millionaire is peddling eternal life. Why do people believe him?