Contrary to popular belief, earnings growth has a very low correlation with decadal stock returns. The primary driver is the change in the valuation multiple (e.g., P/E ratio expansion or contraction). The correlation between 10-year real returns and 10-year valuation changes is a staggering 0.9, while it is tiny for earnings growth.

Compounding has positive asymmetry. A stock can only lose 100%, but it can gain multiples of that. This means a portfolio with one stock compounding at +26% and another at -26% doesn't break even over time; the winner's gains eventually dwarf the loser's total loss, leading to strong positive returns.

Dividends do not inherently increase an investor's capital, as a dividend payment reduces the stock's price by the same amount. Total shareholder return is only achieved if the dividend is fully reinvested without taxes or fees; otherwise, only price appreciation grows the initial investment.

While Berkshire Hathaway is built for durability, the S&P 500 index possesses a unique long-term advantage: its self-cleansing mechanism. As dominant companies inevitably falter over centuries (e.g., NVIDIA), the index automatically replaces them with the next generation of winners. This constant rejuvenation could make the index a more resilient investment over an extremely long timeframe.

The smooth exponential curve of compounding is a myth. In reality, it occurs in a world of shocks and uncertainty. True long-term compounding isn't just about picking winners; it's the result of having a robust process that allows you to survive the inevitable randomness and volatility along the way.

A Wall Street Journal experiment pitted a monkey throwing darts at a stock list against professional traders. Over a ten-year span, the monkey's long-term, passive 'buy-and-hold' strategy won. This demonstrates the power of long-term investing over short-term, active trading.

Buffett's legendary wealth isn't just from being a smart investor, but from being a good investor for 80 years. The vast majority (99%) of his net worth was accumulated after age 60, highlighting the insane power of long-term compounding.

Extraordinary long-term investment returns often come from seemingly boring, overlooked companies. Eddie Elfenbein points to examples like Lancaster Colony (croutons) and Nathan's Famous (hot dogs), whose stocks have crushed the market over decades. This highlights the power of consistent, high-quality businesses that don't attract speculative hype.

The effort to consistently make small, correct short-term trades is immense and error-prone. A better strategy is focusing on finding a few exceptional businesses that compound value at high rates for years, effectively doing the hard work on your behalf.