I can see how collaborating together on problems is effective (much like a shared whiteboard currently available) but virtually getting up and virtually walking

I can see how collaborating together on problems is effective (much like a shared whiteboard currently available) but virtually getting up and virtually walking over to another person to see them and help them does not appear to be a problem that needs to be solved! In all reality, this moving around is just a waste of time. Travelling and motion is always a waste of time, which is why the ability to video conference is sometimes (always?) preferred to flying across the world to have a 15 minute meeting.