CONCEPT
Ecosystem Lock-In
The competitive advantage that emerges when accumulated investments in data, integrations, talent, and process make switching prohibitively expensive — the durable moat that AI cannot replicate because it was built through time.
Ecosystem lock-in describes the structural barrier to customer switching that ecosystem-dependent software companies have built over decades of operation. The lock-in is not single-source: it operates simultaneously through data accumulation (years of customer-specific information stored in the platform), integration density (hundreds of connections to adjacent enterprise systems), human capital (certified administrators and consultants whose careers depend on the platform), process embeddedness (workflows the customer organization has built around the platform), and switching cost (the financial, operational, and political expense of migration). The lock-in is what allows ecosystem companies to maintain pricing power even as code-level alternatives proliferate, and it is what justifies the durability discount in their cost of capital.
In The You On AI Field Guide
Lock-in is structurally different from monopoly. A monopolist controls supply; an ecosystem company controls the cost of leaving. Customers can leave; many do. But the cost of leaving is high enough that most do not, and those who do leave on the margin do not threaten