Archive - Excel Blog

Claude Mass Psychosis

Jan 29 • Carl Cortright

Book: The Courage to be Disliked

Jan 27 • Carl Cortright

Systems of Action and the Dominos Pizza Tracker Product Model

Jan 25 • Carl Cortright

Jan 21 • Carl Cortright

Lasers, Lightbulbs, and Vibecoding

Jan 20 • Carl Cortright

The Commoditization of Services

Jan 19 • Carl Cortright

The Future of Vertical SaaS is Personal Software

Jan 14 • Carl Cortright

[finished] The Way Startups Die Series

Jan 3 • Carl Cortright

Jan 2 • Carl Cortright

December 2025

Ways Startups Die: Raising Too Much

Dec 31, 2025 • Carl Cortright

The Stagnation Trap: Why Slow Growth is Riskier than Fast Failure

Dec 30, 2025 • Carl Cortright

The Way Startups Die: Pivot Hell and the Not Shipping Trap

Dec 29, 2025 • Carl Cortright

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