Warren Buffett is widely acknowledged as the world’s best investor. The Oracle of Omaha, as he is known, produced some of the best returns the world has ever seen, growing the book value of Berkshire Hathaway (NYSE: BRK.A) by 20% per year over a period of 55 years. What’s different is that Buffett did all of this work from his office in Omaha, and not from a desk on Wall Street, the capital of the US financial industry. For that reason, many turn to Buffett for his advice on how to invest for retirement. They want to hear from someone like them, who lives simply and is content without living life in the fast lane. What would Buffett do? At 2021’s Berkshire Hathaway shareholders meeting, Buffett was asked by a long time shareholder if he should buy Berkshire or simply invest in an index fund....