当今人与人在很大程度上的平等——即面对自然淘汰法则人人机会均等，并且连子嗣的数目都一样——意味着和在印度土著部落中的情况相比，印度中上层阶级中已丧失了80%的自然选择中的优势。

The grand mediocrity of today—everyone being the same in survival and number of offspring—means that natural selection has lost 80% of its power in upper-middle-class India compared to the tribes.

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因为它全是数字化的，它淘汰了二手书市场，也杜绝了任何共享，而且因为作业和考试都是通过准入码进行的，它让人们失去了选择退出的任何能力。

Because it's all digital, it eliminates the used book market and eliminates any sharing, and because homework and tests are through an access code, it eliminates any ability to opt out.

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如果不是这样的话，那么最后优胜者就被淘汰，而投票者的第二选择仍有希望获奖。

If not, the last-place finisher is dropped and its voters' second choices are distributed among the movies still in the running.

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And sexual selections give rise to a host of organisms, some of which survive and are fit and others which aren't.

性选择导致了大量有机体的产生，其中的一些有机体生存了下来,适应了竞争,而其他则遭到淘汰。

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