This is a non-trivial benefit of mortality. Not just in science, but in politics too. Wouldn&#x27;t it be horrible if, oh, Genghis Kahn was still alive and in charge? Death may limit the good that some people do, but it limits the bad that people do, too, and roughly speaking it seems to be worth the trade-off. Even the most ruthless dictator of the most powerful, untouchable empire will eventually fall to entropy.<p>(One of the reasons _1984_ is such a nightmare was not it&#x27;s cruelty and horror, but it&#x27;s all-too-believable stability, even with human mortality. Orwell&#x27;s appendix gives a ray of hope, however, when he discusses the fact that human language itself would, in the long run, prevent even that world from continuing indefinitely.)