Articles
Q&A: The Antifragile Investor: Balancing Geopolitics, Identity, and the Cost of Growth
There is an unspoken conflict between Americans and Europeans. Europeans accuse Americans of being stuck in the rat race. Americans look at Europeans, see them sipping their espressos for two hours a day and reading newspapers, and call them lazy.
Uber and Self-Driving Cars: The Utilization Problem Nobody Talks About
I took a Waymo with my colleague Cyrus. We were genuinely impressed. It was a seamless experience. Uber is dead, long live Waymo? Not So Fast.
What AI, Tariffs, and Global Uncertainty Mean for Your Portfolio
The future feels less predictable because the range of possible outcomes has expanded. Here is my best attempt to think through that reality with humility, and why you should let me do the worrying for both of us.
When to sell a stock: The Art and Psychology of Selling
Investing is a lot more art than science. I bring a scientist's mindset – I approach problems with an open mind and I am willing to change my mind when data proves me wrong.
On AI Eating The World
Instead of joining the chorus of false certainty, let me offer you a crayon-level framework for thinking about it. I am going for vaguely right, not precisely wrong.
10 Life Lessons I Passed On to My Daughter on Her Bat Mitzvah
On January 11, 2026, my younger daughter, Mia Sarah, celebrated becoming an adult, at least according to Jewish tradition (she turned 12). This is what I told her
Q&A: From Imposter Syndrome to Authenticity
I let myself be me when I write. I just made it sound easy. It is not. It comes down to confidence. It took me a long time – years, to get comfortable with being me on paper.
The Church of Climate and the Law of Unintended Consequences
When policies are judged by intentions rather than outcomes, you get Germany closing nuclear plants only to burn more coal.
Q&A Money Should Buy Time, Not Things
As my income went up, instead of buying myself things, I turned to buying time and experiences.
Our Sistine Chapel: Long-Term Investing in Quality and Kindness
Warren Buffett calls Berkshire Hathaway his Sistine Chapel. This analogy haunted me for years until I realized we are building the exact same thing at IMA. It took me a decade to put into words, but I finally narrowed our firm’s entire reason for existence down to just two words. They sound simple, but living up to them is the hardest thing we’ve ever done.
Living and Investing with Intention
As an investor, being intentional about identifying assumptions is extremely important. When you're mindless, you accept things as they are without realizing you're walking on thin ice while everyone else thinks it's solid ground.
Learning to See
Looking back, I recognize that my parents gave my family an amazing gift: the ability to see. They never forced us to go to museums; they just took us with them.
Operation Molly
My biggest problem was that my family, including yours truly, was not good at lying. Okay, I am getting ahead of myself.
Quality Matters: From Paris to Portfolios
Today I am a different (hopefully better) investor than I was five, ten, twenty years ago; as I look at the biggest changes, it is my focus on quality investing and being extremely selective and uncompromising when it comes to quality.
Q&A Series: Research Process, Evaluating Country Risk and Tech Investments
Today we'll delve into my research process, how I assess country risk for investments and why some investors avoid technology stocks
Omaha 2026 Breakfast + Get Together
If you’re making the pilgrimage to Omaha for the Berkshire Hathaway Annual Meeting, I’d love to see you there. Every year, thousands of value investors gather to celebrate the wisdom of Buffett and Munger, but my favorite part has always been connecting with readers and friends over coffee.
London and Scotland: Musicals, Markets, and Memories – Part 3
Our London and Scotland trip blended investing, art, friendship, and father-son memories that made the journey unforgettable.
The Ability to Suffer – Part 2
One important quality great management must have is the ability to suffer, doing the right thing when everyone else is chasing easy gains.
The Art of Rational Irrationality – Part 1
I visited Rolex stores and drank gin and tonics for research. What Rolex and Fever Tree taught me about quality, patience, and irrational excellence in investing.
My Article in The Wall Street Journal
When I had the chance to tour an Amazon fulfillment center in Denver, I jumped at the opportunity. What I found was both more remarkable and more unsettling than I had imagined.
Why Smart Investors Should Sit Out the AI Arms Race
The hype around investing in AI feels real, but like every revolution, it’s easy to forget that not every gold rush makes its miners rich.
