Those men who survived—those eager to obey, eager to live for one another, since they had nothing else to vindicate them—those men could neither carry on, nor preserve what they had received. thus did all thought, all science, all wisdom perish on earth. thus did men—men with nothing to offer save their great number—lose the steel towers, the flying ships, the power wires, all the things they had not created and could never keep.
what connection does the narrator make between collectivism and human invention?