A chief advantage of having lots of money is that you have access to opportunities to grow that money at a rate that lesser mortals can only dream of. Private equity funds are among such instruments. They pool money from wealthy individuals and entities (big global funds typically won’t take less than $50 million) and invest in aggressive and unconventional ways. Some of their bets fail but the others make spectacular returns. When things go well, investors end up with a rate of return that makes them very, very happy.