Outlast Everyone
I used to think conviction was the most important thing in investing. Find an idea you believe in, size up, hold on.
Then I started paying attention to who actually builds lasting wealth versus who blows up. It wasn’t the most convicted people. It was the most patient ones. And often the most doubtful.
There’s a number about Buffett that changed how I think about all of this. 99% of his net worth came after age 50. 95% came after 65.
At 60, he was worth $3.8 billion. Already richer than anyone needs to be. If he’d retired then, he’d have maybe $12 million today — nice, but not what anyone would call Buffett-level wealth. Instead he kept going. Today, at 94, it’s over $140 billion.
Talent got him to $3.8 billion. Patience got him to $140 billion.
The last three decades — decades where he wasn’t doing anything dramatically different — produced 97% of his fortune. The whole story is just the compounding. Not the stock picks. Not the famous bets. The fact that he never stopped.
Look at any list of great investors and notice: they’re all old. Buffett, Munger, Templeton, Lynch. They didn’t just generate good returns. They generated good returns for 40, 50, 60 years.
Most investors who look brilliant over 5 years look average over 15 and look retired — or bankrupt — over 30. The ones in the history books are the ones who never stopped compounding. Time is a filter, and it’s more brutal than any stock screen.
Here’s what finally made me stop trying to pick stocks.
Imagine you bought Amazon in 2000. To capture that 200x return, you had to hold through a 90% drawdown, a 50%+ drop in 2008, multiple 30%+ corrections, and resist selling when you were up 100%, 500%, 1000%. For twenty-five years.
Almost nobody does this. Even early Amazon employees sold most of their stock long before the biggest gains.
Someone who just bought an index fund and forgot about it captured most of Amazon’s return anyway — because Amazon is in the index — without any of the stress or the constant temptation to sell. The index gives you 90% of the upside with 10% of the difficulty. That’s the trade-off that got me.
The loudest voices in finance are almost always the worst performers. The guy on TV who called the crash. The newsletter that predicted the ten-bagger. The Twitter account with the all-caps thesis.
Certainty is what gets you on TV. Gets you retweeted. Nobody shares the guy who says “I don’t know, it depends on a bunch of things we can’t predict.” That doesn’t make for a good segment.
But the world doesn’t care about our need for clean answers.
Every January, Wall Street analysts publish their year-end S&P 500 targets. One number. No range. No probability. The track record is essentially random. These predictions have almost zero correlation with what actually happens. They keep doing it because the alternative — “it could be anywhere from down 15% to up 25%” — doesn’t get you quoted in the Journal.
Meanwhile, weather forecasters went the opposite direction. A 3-day forecast today is as accurate as a 1-day forecast was in 1980. They got there partly by getting comfortable saying “40% chance of rain” instead of pretending they knew. They embraced uncertainty, and it made them better.
Finance went the other way. More precision, less accuracy. More confidence, worse outcomes.
Long-Term Capital Management is the case I keep coming back to.
Nobel laureates. Mathematical proof their strategies couldn’t fail. Models showing the odds of blowup were essentially zero — once-in-a-billion-years stuff. Lost $4.6 billion in four months. Nearly took down the global financial system.
The math wasn’t even wrong, exactly. The assumptions underneath the math were wrong. But when you’re certain about the model, you stop questioning the assumptions. That’s the real cost. Not that you’ll be wrong sometimes — everyone’s wrong sometimes — but that certainty makes you blind to the specific thing that’s about to kill you.
There’s a distinction I find useful: process conviction versus outcome conviction.
Process conviction is confidence in how you make decisions. You trust your approach. You’ve tested it. You know it works over time even when it fails on any given bet.
Outcome conviction is confidence in what will happen. You’ve attached your ego to a specific result.
A good poker player has total confidence in their strategy and zero confidence in any individual hand. They know they’ll lose plenty of hands. That’s fine. Over thousands of hands, the edge plays out. An amateur does the opposite. No consistent strategy, but total emotional attachment to pocket aces. Can’t fold even when the board is screaming at them.
I try to run my investing the same way. High conviction in the approach — low-cost, diversified, long time horizon, mechanical rebalancing. Low conviction in any specific prediction about what markets do next quarter.
It’s less exciting. But excitement and returns aren’t the same thing.
The competition has also gotten absurd. In 1960, beating the market was plausible. Information was slow. Most investors were amateurs reading newspapers.
Now? Thousands of hedge funds with PhDs in mathematics. Algorithms parsing news in milliseconds. Every piece of public information priced in almost instantly. The SPIVA data is brutal: roughly 90% of actively managed funds underperform their benchmark over 15 years. Smart people with resources and experience and Bloomberg terminals. And the vast majority can’t beat the index.
If they can’t do it, I’m not sure what makes me think I can. That was the honest conversation I eventually had with myself.
There’s an ego cost to all of this. Giving up the dream of being the smart money. Admitting you’re not going to outthink the market. Just buying the index and going to the beach with your kids.
But the alternative is spending decades trying to beat it, probably failing, and possibly blowing up along the way. The people who build real, lasting wealth mostly do very boring things. They invest consistently. They keep costs low. They don’t panic. They let time do the heavy lifting.
The world rewards survival. Survival rewards doubt. And the person who bought the index, kept buying through every crash, and waited 30 years will beat almost everyone who tried to be clever.
Time is the one edge available to everyone. Most people waste it trying to be brilliant when they could just be patient.