February 8th, 2026 - #667 - read online - Free Version

Welcome to Brain Food, your weekly signal in a world full of noise.

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Tiny Thoughts

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Nobody's success story sounded... See more

The difference between greatness and mediocrity isn’t in the spectacular moments but rather in avoiding critical errors.

Warren Buffett’s first rule of investing? Never lose money. His second rule? Never forget rule one. This isn’t clever wordplay – it’s the mathematics of success. A 50% loss demands a 100% gain to break even. Or look at elite... See more

I’ve been thinking a lot about the idea of giving ourselves clear, useful constraints to direct our lives. And it sounds like he had a strong set of values for his work, and that made the resulting discipline, if not easy, at least obvious. It reminds me of “flow” psychologist Mihaly Csikszentmihalyi, who wrote that when you choose to invest in a... See more