The billionaire hedge fund manager reflects on losing his son, and how to move forward after tragedyOpinions expressed by Entrepreneur contributors are their own. Ray Dalio has made more money for investors than any hedge fund manager in history. In 2020, Dalio lost his eldest son, Devon, in a car accident. I flew to New York to interview Ray Dalio for my podcast Money Rehab. What I got was a lesson in mortality, meaning, and the one asset that no hedge fund can secure: love.