Not good enough. In fact, a counter example: people regularly spawn random threads of conversation like the one you mention in Slack channels. A lot of times n

Not good enough. In fact, a counter example: people regularly spawn random threads of conversation like the one you mention in Slack channels. A lot of times nothing comes of it, but some of these threads tag senior executives and managers within the company who have followed insights from threads into new cost improvement or even revenue generating ideas. These conversations are unlikely to happen in passing hallway conversations and even if they did would likely not develop further than a couple remarks without forcing people to creating meetings to discuss topics that may or may not be important, which quickly gets overwhelming and makes people lose interest in further discussion. Having people sit around all day at an office in case such a conversation spontaneously happens is very inefficient when it can be done online in asynchronous fashion. The central tenet of your argument is thus unraveled and the conclusion you must come to is that we don’t need offices. Accept it. Office workers aren’t here to serve as NPCs to fill your pretty little cities.