It is already working at scale. If you are using google maps' navigation, you are driving like this today. The only difference - instead of doing altruistic thi

It is already working at scale. If you are using google maps' navigation, you are driving like this today. The only difference - instead of doing altruistic thing by your own volition, you are likely being misled by nav system to take the route that, while being somewhat sub-optimal at this particular moment, will not cause massive congestion the moment you will get there.