I'd argue cars are the tragedy of the commons. Roads existed before cars, and they were for people and, yes, bicycles. Cars came and took them over, made them e

I'd argue cars are the tragedy of the commons. Roads existed before cars, and they were for people and, yes, bicycles. Cars came and took them over, made them extremely unpleasant and unsafe places to be, require much more infrastructure and are much less efficient for short trips.