John Stewart — Systems for Performance & Growth
I build systems — for product growth, for conversion, for human performance. I'm the founder of PerformanceProtocol.ai, ConversionProtocol.ai, and ProductLedGrowth.ai, and the author of the upcoming book You're Not Special.
I write about the architecture of high performance — in companies, products, and people. Some of it's useful. Some of it's just me arguing with myself in public. Read on and decide for yourself.
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Latest Thinking
All articlesYou're Not Special
And How That's a Good Thing
A grounded look at pain, discipline, and building a life without entitlement or illusion.
Upcoming book
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PerformanceProtocol.ai
The architecture of high performance — in companies, products, and people.
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AI-powered conversion architecture.
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Systems for product-led companies.
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Weekly & monthly dividend ETF tracking and analysis.
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The home of Wrexham AFC supporters worldwide.
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Master the art of heading in soccer.
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Embeddable calculators that improve decision-making.
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Product Growth
- Experimentation systems
- Conversion architecture
- PLG frameworks
Performance Systems
- Mental models
- Training systems
- Protocols for discipline and longevity
AI Leverage
- AI-driven product development
- Automation of experimentation
- Decision systems
Speaking & Advisory
I work with organizations building products, growth systems, and AI-enabled companies. If you're building something interesting, let's talk.