The issue with something like CRISPR is that it is inheritable.<p>Not &quot;inheritable and may eventually die out&quot; inheritable, but &quot;inheritable and all future generations from that point on would have it&quot; inheritable. Usually, a genetic change in one organism takes a long time to spread through a population. But in this case, we have what is called a <i></i>&#x27;gene drive&#x27;<i></i>, where the trait can rapidly spread after a number of generations.<p><a href="http:&#x2F;&#x2F;www.genetics.org&#x2F;content&#x2F;201&#x2F;2&#x2F;425.full" rel="nofollow">http:&#x2F;&#x2F;www.genetics.org&#x2F;content&#x2F;201&#x2F;2&#x2F;425.full</a><p>Any mistake will persist in the population even against selection pressure.