7 lines of code to accept payments online
Based on market validation, competitive moat, team risk, and execution feasibility at founding stage.
Near-perfect validation score: 92/100. The problem was obvious (Braintree/PayPal were terrible DX), the ICP was clear (developers), and the moat was deep (switching costs + financial infrastructure).
Developer-first distribution in a market that sold to CFOs. Collison brothers code-reviewed their first customers personally.
Only risk: banking licence requirements in EU/APAC create 2-year delays. Otherwise — strong GO.
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