TL;DR: If your edge disappears when you stop pushing, it is not a real edge.
You need something structural: cost advantage, switching costs, network effects, brand, distribution, or a regulatory moat.
Amazon’s logistics scale is not just “good execution.” It lowers costs and improves speed in a way smaller rivals struggle to match.
Confusing a feature, a campaign, or hustle with a moat.
If your edge disappears when you stop pushing, it is not a real edge.
You are here because this concept becomes more useful after Porter’s Five Forces and before Unit Economics.