(Bloomberg) -- This spring, Nir Bar Dea finally got the role he’d been working toward for years, becoming sole chief executive officer of the world’s biggest hedge fund.Most Read from BloombergThe Late-Night Email to Tim Cook That Set the Apple Watch Saga in MotionChinese Carmaker Overtakes Tesla as World’s Most Popular EV MakerApple Resumes Sale of Watches After Appeals Court Lifts US BanTesla Plans Revamp of Smash Hit Model Y From China PlantGhost Ships at Reawakened North Korea Port Put Ukrai