Let me tell you about the very rich. They are different from you and me. ― F. Scott Fitzgerald, The Great Gatsby Suppose the Princeton or Yale endowment investment staff wanted to go all-in on a single stock? Forget diversification and the free lunches, just one shoot-the-moon can’t lose security. Think their trustees would go for it? Can elephants fly? Of course not. And yet, this is the case for some of the biggest winners in the foundation world, funds like the Jen-Hsun & Lori Huang Fo...