A hedge-fund wunderkind, top YouTube talent managers, and what Robert Shiller's worried about

Reuters/Steve Marcus; Elliott Management; AP Photo/Richard Drew; Ruobing Su/Business Insider Hello! You might not have heard of Jesse Cohn, but you've almost certainly heard of the companies he's been shaking up.See the rest of the story at Business Insider NOW WATCH: This is the shortest route for a road trip across the US to see 50 national landmarks See Also: Meet the 39-year-old hedge fund star most people have never heard of who bought a $30 million penthouse on Wall Street We're starting t...