人类是如此的破坏性，”马尔科姆说：“有时候，我认为我们是一种瘟疫，会擦洗地球。我们非常摧毁事情，有时我认为这是我们的功能。也许每几个eons都会杀死世界其他地方，清理甲板，并让进化前进到下一阶段。
(Human beings are so destructive," Malcolm said. "I sometimes think we're a kind of plague, that will scrub the earth clean. We destroy things so well that I sometimes think, maybe that's our function. Maybe every few eons, some animal comes along that kills off the rest of the world, clears the decks, and lets evolution proceed to its next phase.)