This week's additions focus on mindset, founder stories, and strategy, with new digests from Rob Walling, Ryan Deiss, and Superwall. Highlights include Isolation — not competition — is what burns out most founders Buyers pay for risk reduction, not growth stories or revenue.

Physical & cognitive performance

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Ketogenic diet and intermittent fasting for metabolic and brain health

Tim Ferriss September 8, 2025

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Physical & cognitive performance 9

Physical health & longevity 5

• Four weeks of ketosis unlocked a decade-best blood panel
• Poor insulin sensitivity accelerates neurodegeneration — it's fixable
• IF without resistance training loses muscle, not fat

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Business models

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The Forward Deployed Engineer playbook for AI startups

Y Combinator September 8, 2025

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Business models 9

Customer discovery 8

Hiring & recruitment 6

• Why AI agents demand Palantir's costly field-deployment model
• FDE model turns consulting risk into a compounding product moat
• Sell outcomes, not software — and price against value delivered

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