uber and lyft are the next mass transit (at least in concept). think of trains and busses as circuit switched networks and cars (in a rideshare context) as pac

uber and lyft are the next mass transit (at least in concept). think of trains and busses as circuit switched networks and cars (in a rideshare context) as packet switched networks. packet switched flexibility wins over the efficiency gains of metal wheels (lower friction) and the economies of scale of busses or trains. my 2c