Jeff Bezos

Bezos's investment style is long-term and patient to an extreme degree. He built Amazon by deliberately losing money for years, reinvesting every dollar into infrastructure, logistics, and new businesses.

He told shareholders repeatedly that he would sacrifice short-term profitability for long-term market position. AWS was not a profit center for years — then it became Amazon's most profitable business unit.

Through Bezos Expeditions, he was an early investor in Google (1998, before the IPO), which alone made him hundreds of millions. He also invested early in Airbnb, Uber, and Twitter.

Charlie Munger

Munger's whole thing is mental models. The idea is simple: instead of being an expert in one field, you learn the core concepts from as many different fields as possible — psychology, biology, physics, economics, history — and then use that whole toolkit to think about problems.

He calls it a latticework of mental models. It sounds like a self-help concept.

It's actually how he consistently made better decisions than almost everyone around him. On investing, he pushed Buffett away from his old mentor's approach — which was basically "find dirt-cheap companies and flip them fast" — toward something more durable: find the best businesses in the world and hold them forever.

The key word he uses is moat. A business so dominant that competitors can't touch it.

Think Coca-Cola. He was also deeply influenced by psychology, particularly the ways humans reliably fool themselves.

He gave a famous talk called "The Psychology of Human Misjudgment" listing 25 ways our brains get things wrong. Reading it once will change how you make decisions.

Jeff Bezos

His core philosophy is customer obsession combined with long-term thinking. He says most companies optimize for the next quarter.

He optimizes for the next decade. He invented the concept of "working backwards" — writing the press release and FAQ for a product before building it, to ensure the team starts from the customer's perspective.

He also invented the "two-pizza rule": if a team needs more than two pizzas to feed, it is too big.

Charlie Munger

Invert. Always invert.

That's his most famous rule — borrowed from the mathematician Jacobi. Instead of asking "how do I succeed?" ask "what would guarantee failure, and then avoid those things." It sounds obvious.

Almost nobody actually does it. He believes the secret to a good life and good investing is the same: figure out what you want to avoid, avoid it relentlessly, and most good things follow.

On wealth: getting rich isn't the hard part — keeping it is. Most people blow up by using borrowed money, getting greedy at the top, or panicking at the bottom.

Don't do those things. On decisions: only make the big bet when you're very sure.

Be patient for a long time, then move fast when the opportunity is obvious.

Jeff Bezos

Bezos told shareholders in 1999 that Amazon would lose money for years. He said the same in 2001.

He meant it. His risk tolerance comes from a framework he calls the "regret minimization framework" — imagining himself at 80 looking back — which weights the risk of not trying far more than the risk of failing.

The risk he manages carefully is existential: through all of Amazon's early loss years, he kept debt manageable and liquidity intact so that survival was never in question. He takes huge bets on the thesis, but he protects the foundation.

Charlie Munger

Munger's approach to risk: don't take risks you don't understand, and don't take risks you don't need to. He kept things simple.

He concentrated into a small number of businesses he understood deeply. He never used borrowed money.

He kept large cash reserves. His view on diversification was almost the opposite of what most financial advisors tell you — he thought spreading money across 50 stocks was an admission that you hadn't done enough homework.

If you've done the work, you concentrate. If you haven't, maybe don't invest at all.

Jeff Bezos

Bezos lived frugally in the early Amazon years — he famously built his own desk from a door laid on sawhorses to keep costs down. The "door desk" became a symbol at Amazon.

He became extraordinarily wealthy but for years retained a modest personal style. Post-divorce and especially post-CEO, he moved to Miami, bought massive properties, and began a much more public lifestyle with partner Lauren Sanchez.

He exercises in the morning before checking his phone.

Charlie Munger

Munger lived in the same house in Los Angeles for most of his adult life. He was famously frugal — not in a miserable way, but in a "I genuinely don't care about most things money buys" way.

He flew commercial until fairly recently. He read obsessively.

He described himself as a book with legs. His children joked that he was more interesting to talk to than almost anyone alive, but would only engage on topics he found intellectually stimulating.

He donated massively to education — hundreds of millions to Harvard Law School, the University of Michigan, and other institutions, often with very specific conditions attached. He designed buildings as a hobby and funded their construction himself.

He died at 99 worth around $2.6 billion — extraordinary by any measure, and somehow modest given he sat next to one of the richest men in history for 45 years.

Jeff Bezos

Amazon Web Services. AWS was an internal tool that Amazon began selling to external companies in 2006.

By 2023, AWS generated $91 billion in revenue and accounted for the majority of Amazon's operating profit. It is the dominant cloud computing platform in the world — Microsoft and Google are still playing catch-up.

Bezos had the idea when Amazon was already a massive retailer. He added an entirely different trillion-dollar business on top.

Charlie Munger

See's Candies. In 1972, Munger convinced a reluctant Buffett to pay what seemed like an expensive price — $25 million — for a California candy company.

Buffett thought it was too much. Munger held firm.

See's has since generated over $2 billion in profit for Berkshire, basically funding dozens of other acquisitions. It also taught Buffett the single most important lesson of his career: paying a fair price for a great business beats getting a cheap price for a mediocre one.

That one deal changed the entire direction of Berkshire Hathaway.

Jeff Bezos

The Washington Post acquisition is the most common answer. He paid $250 million for it in 2013 and has poured money into it since.

The Post has struggled commercially and faces the same headwinds as all legacy print media. Separately, his rocket company Blue Origin has consistently lagged SpaceX in capability and ambition — Blue Origin's New Shepard is basically a tourist ride compared to SpaceX's reusable orbital rockets.

Charlie Munger

Munger is famous for avoiding mistakes more than for making spectacular wins — his whole philosophy is about not doing stupid things. But he's admitted to a few.

He said Berkshire was too slow to move into BYD, China's electric vehicle company, despite knowing it was exceptional for years before they finally bought in. He also held too much Wesco Financial for too long when the money could have been put to better use elsewhere.

His most honest self-criticism: he wished he had moved faster when the evidence was already clear. For a man who spent his career warning others about psychological biases, he wasn't immune to them.

Jeff Bezos

Jeff Bezos graduated from Princeton in 1986, worked at several finance firms, and became the youngest-ever senior vice president at D.E. Shaw hedge fund by age 30.

In 1994, he quit to drive cross-country with his then-wife MacKenzie, writing the Amazon business plan in the passenger seat. He started selling books from his Bellevue garage, moved operations to Seattle, and launched Amazon.com in 1995.

What followed is one of the greatest compounding business stories in history: books to everything, retail to cloud computing (AWS), a logistics network that rivals national postal services. Amazon's revenue in 2023 was $574 billion.

Bezos stepped down as CEO in 2021 to focus on Blue Origin, his space company. He also owns The Washington Post (acquired 2013 for $250 million).

Charlie Munger

Charlie Munger grew up in Omaha — same city as Buffett, but they didn't know each other yet. His father was a lawyer.

So was his grandfather. Charlie became one too, but he was clearly more interested in figuring out how the world worked than in courtrooms.

He studied math at the University of Michigan, got drafted into World War II, trained as a meteorologist, and somehow ended up at Harvard Law School without ever finishing an undergraduate degree. Harvard took him anyway.

He graduated in 1948 and moved to California to practice law. He was good at it.

He was also quietly building a real estate business on the side that made him more money than law ever did. He and Buffett met at a dinner in Omaha in 1959.

Munger was 35. Buffett was 28.

By the end of the night, Buffett was trying to convince Munger to go into investing full time. It took about a decade.

Munger ran his own investment partnership from 1962 to 1975 — returned 24% annually while the market did 6.4%. Then he fully merged his career with Buffett's at Berkshire, where he stayed until his death in 2023.

Jeff Bezos

Amazon (founder, executive chairman). Blue Origin (founder).

The Washington Post (owner). Bezos Expeditions (personal investment vehicle — early backer of Google, Airbnb, Twitter, Uber, and many others).

Previously: D.E. Shaw (SVP).

Charlie Munger

Munger's main stage was Berkshire Hathaway, where he served as Vice Chairman from 1978 until he died. His role was hard to define on paper — he didn't run a fund or manage a portfolio.

What he actually did was talk to Buffett. That was worth a trillion dollars.

Before Berkshire, he ran his own investment partnership from 1962 to 1975 that crushed the market. He also controlled Wesco Financial, a small insurance and financial company he ran as a personal Berkshire subsidiary from 1973 to 2011, until Berkshire fully absorbed it.

Outside finance, he was obsessed with architecture — he personally designed several buildings, including a dormitory at the University of Michigan that his own architecture school rejected for violating design principles. He funded it anyway.

Jeff Bezos

Princeton University — Bachelor of Science in electrical engineering and computer science, summa cum laude, 1986.

Charlie Munger

University of Michigan, mathematics — left for World War II without graduating. US Army Air Corps, meteorology training.

Harvard Law School, JD 1948 — admitted without an undergraduate degree, which Harvard is apparently capable of when it wants to be.