Dru's Notes
I went from McDonald's to software consulting to a three-year mini-retirement to running a newsletter read by thousands. Along the way I started writing down the rules. One mental model day.
- Indexed episodes, last 90 days
- 84
- Latest publication
- Sep 23, 2026
- Audience
- Checking…
- Earliest in this view
- Jul 3, 2026
Latest episodes
I Use Evolution to Predict Which Markets Survive AI | Daily Essay (opens the original)
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Chegg lost about 99% of its market value while electricians got busier. Markets take the same five routes species take through an ice age: gone, hurt, unchanged, thriving and new.
What Google's M&M Jars Taught Me About Willpower | Daily Essay (opens the original)
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Ten years back, my interior designer wanted to put a bar cart in my house. Put liquor in plain sight and you're subconsciously primed. Move it out of sight and the thought doesn't form.
What a 20-Mile Night Run Taught Me About Negative Returns | Daily Essay (opens the original)
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Kiese Laymon ran at least six miles a day for 2,564 days straight until his body broke. With most good things, more does less each time. With a few, more starts producing the harm it was protecting you from.
How I Play Aggressive But Safe | Daily Essay (opens the original)
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Blue team defends a system. Red team breaks in. The defender needs to be perfect, while the attacker only has to find a single error.
Why I Turn My Phone Screen Red at 9pm | Daily Essay (opens the original)
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Unlocking your phone by face is instant. A passcode adds a few seconds of friction where you decide whether to keep going.
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