That&#x27;s not thinking, that&#x27;s an attempt to stop thinking. We already know things we can do that would be far more interesting and dangerous to live with, if we just had control over genes. If all that we could do is make &quot;a tall person&quot;, there&#x27;d be no debate. Your brain is probably recoiling from the possibilities, because you simply can&#x27;t accept them, and reaching for denial and bad humor in an attempt to cover it over, but that&#x27;s going to be really, really dangerous in the near future. You&#x27;d better look reality in the face instead of trying to mock it or it&#x27;ll blindside you, and the same goes for our regulators and bioethicists.