Draft animals and large cities can work, the horse is not one of them. Machines can help but also hinder. Co-operative mechanical delivery to central depots followed by individual delivery by consumers works best. Think NYC no real nead for a car unless leaving the city. Some people like to live like that. Im not one of them. I think waste recycling should be decentralized. Units that collect the waste in a building use it to generate heat and electricity before taking balance elsewhey for further processing would be useful.