Eric Jackson just revealed his next big investment idea in a series of social media posts.Hedge fund manager Eric Jackson just revealed his newest home-run investment opportunity, and many people are paying attention. It's not hard to see why -- Jackson is widely credited with calling the 100x move in Carvana (CVNA +1.51%) a few years ago, and the more recent 10x move in real estate technology platform Opendoor (OPEN 2.38%).Jackson's next 100x investment idea is...I won't keep you in suspense. In a lengthy ...