For a civilization on the third and final stage, expansion on a galactic scale would require about 100 billion times more energy than the full 385 yotta joules our sun releases every second.
对于处在第三，也是最后阶段的文明来说，在银河系的范畴内进行拓展则需要比太阳每秒释放的 385 尧焦耳还要多出 100 亿倍的能量。