The blockchain industry has spent years pretending that transparency and trust are the same thing.
They are not.
Public visibility can make a ledger easy to audit, but it also turns every user, business process, and transaction pattern into a permanent data leak. That model works well enough when the only thing being coordinated is speculation. It works much less well when the system starts touching credit, identity, healthcare, procurement, or any workflow where data exposure is not a philosophical inconvenience but an operational liability. The industry’s structural weakness is not simply that blockchains are “too public.” It is that most of them were built on the assumption that transparency is the default condition of trust, even in environments where trust actually depends on constrained disclosure, not radical openness.