2/ But to be sustainable over a long period of time, systems must decentralize. Economies that cut off trade flow, dictatorships that stop migration, and languages that don’t accept new words all die, or are already dead.
2/但要在很长一段时间内保持可持续性，系统必须分散。切断贸易流的经济体、阻止移民的独裁政府以及不接受新词的语言都会消亡，或者已经消亡。