Lewis Kallow

Lewis Kallow is the author of The Action Digest newsletter and a ghostwriter for industry-leading founders. He is currently developing a consumer AI product.

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Jul 28, 2022

The Ultramarathon Mindset

Evidence-Based Tactics From the World of Extreme Endurance

Jun 13, 2023

The Ultramarathon Mindset

Evidence-based tactics from the world of extreme endurance

May 14, 2022

The Neuroscience of Achieving Your Goals

We turned a Huberman Lab Podcast Episode into an essay

Aug 4, 2025

I Found 12 People Who Ditched Their Expensive Software for AI-built Tools

They're saving six figures and launching products faster—all without writing code

Nov 27, 2022

Only the Innovative Survive

What science and Howard Schultz's tenure at Starbucks teach us about recession resilience

Apr 2, 2022

Study Sunday: Discomfort and Personal Growth

🤔 The Question — Can seeing discomfort as a sign of progress boost personal growth? A new study published on Tuesday finds that seeking disc

Dec 4, 2022

Rallying in a Recession

Four strategies from businesses that beat the odds

Mar 25, 2025

How I Prompted My Way to Publish-ready Content

4 tactics for production-grade outputs

Jan 15, 2026

AI Can Build Anything. Social Dandelions Decide What Spreads.

When everyone can build and market with AI, the founders who win are the ones who master how trust spreads through communities

May 2, 2022

Do Phone Detoxes Actually Work?

The science of stepping away from your devices

Apr 9, 2022

Study Sunday: Habits Drive Decision-Making

🤔 The QuestionDo you really know why you do what you do? A new study finds that we consistently underestimate the degree to which our action