Warren Buffett’s S&P 500 investment advice: How $400 a month in this fund may grow to $820,000 in 30 years

Warren Buffett advocates for investing in the S&P 500 index fund over picking individual stocks. A consistent investment of $400 each month could yield impressive returns based on historical data. After three decades, this strategy might lead to around $820,000, assuming that past annual returns continue.