W4-018 · Across all four conditions
Layer borrowing
Layer borrowing is obtaining a Web 4 condition from an existing operator instead of building it — the practice that makes a convergence company buildable by a founding team rather than a consortium.
Build the condition that is yours. Borrow the three that are not.
The reason so little has shipped on the convergence is that founders treated all four conditions as things to build. Four systems is not a startup; it is a decade and a consortium.
Borrowing inverts the problem. A world can run inside someone else’s world. Identity can be someone else’s layer. Settlement can be someone else’s ledger. Agent governance can be someone else’s mesh. What remains is one condition and a product, which is an ordinary amount of work.
Borrowing has a real cost and it should be stated: dependency. A borrowed condition is a supplier relationship, with the concentration risk that implies. The discipline is to borrow deliberately, name the dependency, and know what substitution would cost.