Page 64 · Module 02, Design Your Business · this screen continues that page
All 108 frameworksUnfair Advantage, Moat Builder
A competitor launches something similar. An investor asks 'what stops someone from
The prompt
Copy & paste readyLabelsReplace theseSwap the role below
Pro tip, from the book
Network effects are the most powerful moat but the hardest to build. If your product has any element where more users create more value even indirectly, design your product and go-to-market specifically to accelerate that loop. Most founders have a network effect they don't know they have.
Who should run this prompt
Module role profileWho should stress-test your business model? Business models fail quietly — not all at once, but one flawed assumption at a time. The roles on this page represent the perspectives that expose those assumptions before the market does. Use internal roles to build and refine your model. Use outside perspectives to find the gaps your optimism is covering.
Choose any role to drop it into the prompt above. Only the highlighted opening clause changes — the rest of the prompt stays exactly as printed.
◆◆◆◆◆ → ◆ seniority, board level down to specialist◈ outside the organisation
How to make any role sharper
- Add years of experience: "...with 15 years in enterprise SaaS" produces different depth than just the title.
- Add what they care most about: "You care most about [X]" shapes every word of the output.
- Add their communication style: "Be direct. Flag risks first. No jargon." changes the tone entirely.
Use this when
The problem it solvescopying this?' You don't have a clear, confident answer. Your business is growing but feels fragile.
How the framework works
From the printed pageWarren Buffett's concept of an economic moat describes a sustainable competitive advantage that protects a business from competition the way a moat protects a castle. The five types of moat are: Network Effects (the product gets better as more people use it), Cost Advantage (you produce at lower cost than anyone), Switching Costs (customers are locked in by habit, data, or integrations), Intangible Assets (brands, patents, licences), and Efficient Scale (a market so small only one player can profitably serve it). Most businesses have weak or no moats. Building one is a strategic choice.
The method, in four moves
Do these in orderIdentify which of the five moat types you currently have, be honest.
Rate each on a scale of 1–5 for strength. Anything below 3 is not a real moat.
Identify which moat type is most achievable given your current position.
Build moat-widening into your product and business roadmap deliberately. Identify what protects you that competitors cannot easily copy Amazon's unfair advantage wasn't its website , it was the proprietary logistics infrastructure it built over 15 years. When AWS launched, Amazon was already operating data centres at a scale no competitor could match affordably. The moat wasn't the product. It was the underlying capability that took a decade and billions to build and that no startup could replicate quickly. IN PRACTICE
Where the framework comes from
Warren Buffett, Berkshire Hathaway annual letters — moat concept, 1980s onwards
Pairs well with
As printed with this frameworkModule 02 — Design Your Business
Shape what you're building so it deserves to exist.
10 frameworks, printed on pages 49–68.
When this page changes, your copy of the book does not have to.
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