Compounding's Hidden Power
Good returns sustained over time always beat great returns that can't last
If something compounds -- if a little growth serves as the fuel for future growth -- a small starting base can lead to results so extraordinary they seem to defy logic. The counterintuitive nature of compounding leads even the smartest people to overlook its power. Warren Buffett's net worth is roughly $84.5 billion, but $81.5 billion of that accumulated after his 65th birthday. His skill is investing, but his secret is time -- he's been investing consistently since age 10. Good investing isn't about earning the highest returns, because the highest returns tend to be one-off hits that can't be repeated. It's about earning pretty good returns that you can stick with and which can be repeated for the longest period of time. That's when compounding runs wild. Compounding only works if you can give an asset years and years to grow -- like planting oak trees where a year shows nothing, a decade shows something meaningful, and 50 years creates something extraordinary.
- Compounding's counterintuitive nature causes even brilliant people to underestimate its potential
- Good returns sustained uninterrupted for the longest period of time will always beat spectacular short-lived returns
- The key to compounding is endurance -- surviving long enough to let time do the work
- You never get accustomed to how quickly things can grow exponentially
- When compounding isn't intuitive, people focus on solving problems through other means and miss the biggest lever
- Internalize compounding's true mathStudy concrete examples of compounding to overcome your intuitive blindness to it. Understand that $81.5 billion of Buffett's $84.5 billion came after age 65 -- not because he got better, but because compounding accelerates with time.Pro tipIn 2004, Bill Gates criticized Gmail for offering a gigabyte of storage, anchored in the old paradigm of storage scarcity. Even tech visionaries underestimate exponential growth.WarningThe counterintuitiveness of compounding may be responsible for the majority of disappointing trades and bad strategies -- people expect linear growth and give up too early.
- Prioritize consistency and survival over maximum returnsDesign your financial strategy around sustainability, not peak performance. An average return you maintain for 40 years will generate far more wealth than an exceptional return you can only sustain for 10 years.Pro tipBuffett's secret is not just that he's a good investor, but that he's been a good investor since literal childhood. Time is the variable that makes compounding work.WarningDon't confuse patience with complacency. Compounding requires consistent reinvestment and staying in the game, not passive neglect.
- Remove obstacles to longevityIdentify and eliminate anything that could force you out of the game: excessive leverage, concentrated bets, lifestyle inflation that eliminates your savings buffer, or strategies you can't stick with emotionally.Pro tipGetting wealthy and staying wealthy are different skills. Getting wealthy requires optimism and risk-taking. Staying wealthy requires humility, frugality, and accepting that some of what you've gained is attributable to luck.WarningCompounding works in reverse too. Debt compounds. Lifestyle inflation compounds. Bad habits compound. The same force that builds wealth destroys it.
- Review and adjust periodicallyRevisit your approach regularly to ensure it still aligns with your circumstances, goals, and emotional tolerance. What was reasonable or appropriate at one stage of life may need updating as your situation evolves.Pro tipSchedule a quarterly review to check whether your financial behavior matches your stated principles.
Warren Buffett's net worth is approximately $84.5 billion. Of that, $81.5 billion was accumulated after his 65th birthday. He started investing at age 10 and has done so continuously for nearly 80 years.
Jim Simons has compounded at 66% annually since 1988 -- triple Buffett's rate. Yet Simons's net worth is about 75% less than Buffett's.
Ronald Read, a janitor and gas station attendant, saved small amounts and invested in blue chip stocks. He then waited for decades on end.
Housel points out that virtually all of Warren Buffett's financial success can be tied to the financial base he built in his pubescent years and the longevity he maintained into his elderly years. Buffett began serious investing at age 10 and has continued for nearly 80 years. Had he started at age 30 with otherwise identical returns, or retired at 60, his net worth would be a fraction of what it is. Jim Simons of Renaissance Technologies has compounded at 66% annually versus Buffett's 22%, yet Simons's net worth is 75% less than Buffett's because he didn't start until age 50. The lesson is not that Simons is a lesser investor, but that compounding's power is overwhelmingly determined by time, not rate.