Genes are difficult to maintain, requiring subtle and energy-intensive correcting processes. Just as writing too fast can cause typographical errors that garble a text, rapid changes to the genome can undermine a species’ integrity.
但有效的炫耀行为代价不菲。长出精致漂亮的羽毛需要耗费可观的能量和遗传资源。基因很难维护，需要耗费大量的能量来进行微妙的调校过程。就像写字过快可能导致错字从而改变字意一样，基因的快速变化也可能破坏物种的完整性。