a builder's codex
codex · operators · Greg Isenberg

Greg Isenberg

Bio

Greg Isenberg's core framework is ACP (Audience, Community, Product), which inverts the traditional startup sequence. Where most founders build a product and then search for customers, Isenberg starts with distribution: build an audience through content, convert the most engaged members into a community, and only then build the product the community asks for. This inversion eliminates the most common startup failure mode -- building something nobody wants -- because demand is validated before a single line of code is written. He has bet his entire career on this framework, applying it across Late Checkout's portfolio of internet businesses.

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Insights · 1

Tier B · founder-craft · founder-operator
Audience first, Community second, Product last — and AI makes the inversion much faster
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