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.

Anas Sefrioui

Sefrioui is a real estate operator first, investor second. He builds companies, not portfolios.

His growth approach has always been organic — acquire land, develop it, sell units, reinvest. No interest in financial markets or passive allocation.

The Africa expansion was the one big strategic bet beyond his home market. Bold in concept.

Mixed in execution.

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.

Anas Sefrioui

Build where people actually need to live. Volume beats margin.

The goal is not the most impressive building but the most buildings. He has consistently argued that Africa’s housing deficit — running into the hundreds of millions of units — is the biggest real estate opportunity on earth.

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 used borrowed money only a handful of times in his whole life, and said so plainly — his own partnership fell by more than half in 1973-74 partly because of it.

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.

Anas Sefrioui

High on operational bets, low on financial market speculation. Building in emerging markets involves real currency exposure, regulatory uncertainty, and infrastructure gaps — Sefrioui leaned into all of them.

The 2020 legal troubles showed that close proximity to political capital can also become a liability overnight.

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 the University of Michigan, UC Santa Barbara, Stanford 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.

Anas Sefrioui

Not known for conspicuous consumption. His wealth has been largely tied up in Addoha shares and land holdings rather than liquid assets.

He is a builder, not a spender.

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.

Anas Sefrioui

The 2006 Casablanca Stock Exchange IPO. Raising 6 billion Moroccan dirhams on the back of a simple affordable housing story, in a market that was not yet sophisticated, was a remarkable capital markets achievement.

It funded the next decade of growth.

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.

Anas Sefrioui

Expanding into Sub-Saharan Africa too quickly, without enough local partnerships and local capital structures, created operational strain. The 2020 legal case may also trace back to financial engineering under pressure from the Africa overextension.

Governance did not scale as fast as ambition.

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.

Anas Sefrioui

Anas Sefrioui was born in 1956 in Fez, Morocco. He started in real estate in the 1980s with small construction projects in Casablanca.

In 1988 he formally founded Groupe Addoha — later incorporated as Douja Promotion Group. For two decades he focused exclusively on affordable and mid-range housing, staying far from the luxury segment.

The strategy paid off. The 2006 Casablanca Stock Exchange IPO raised around 6 billion dirhams, was heavily oversubscribed, and pushed his personal wealth to an estimated billion, briefly making him one of the richest people in Africa.

Through the 2010s he expanded into Sub-Saharan Africa — Ivory Coast, Senegal, Ghana, and Cameroon — targeting the same underserved affordable housing market. Then came the turbulence.

A restructuring of Morocco’s affordable housing subsidy program hit margins hard. In 2020, Moroccan authorities charged him in connection with a mortgage fraud case linked to Crédit Immobilier.

He denied the charges. The Addoha stock price fell sharply.

The Africa expansion slowed. He remains one of the most significant real estate figures the continent has produced.

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 the graduate residence he funded at the University of Michigan. His proposed Munger Hall at UC Santa Barbara went the other way.

It gave 94% of its bedrooms no windows, an architect on the review committee resigned in protest in 2021, and the project was eventually abandoned.

Anas Sefrioui

Groupe Addoha (Douja Promotion Group) is the whole story. Listed on the Casablanca Stock Exchange under the ticker ADH, its market cap peaked near 25 billion dirhams.

The company builds residential properties across four segments: affordable, mid-range, upper mid-range, and a small luxury slice — though the bread and butter has always been the lower two. At its height, Addoha delivered tens of thousands of housing units per year across Morocco and several Sub-Saharan African markets.

Sefrioui also built out logistics and manufacturing businesses tied to construction supply chains.

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.

Anas Sefrioui

Educated in Morocco in real estate and construction. Not known for Western business school credentials.

He built his expertise in the field, not the classroom.