Cooper and her popular "Call Her Daddy" podcast are joining a company in Berkshire Hathaway's stock portfolio.What does a 30-year-old podcast star have in common with a 94-year-old investing legend? On the surface, not much.Alex Cooper rose to fame through the creation of the Call Her Daddy podcast, which interviews high-profile celebrities and focuses on a range of topics including sex, relationships, and mental health.Warren Buffett, on the other hand, made his name through the conglomerate he has run for ...