[stretchwithme]

and don't forget what modifying the human genome will do. It could give us the means to winnow out the very imperfection that has enabled us to survive. I refer to the inherent variability that creates so many different personalities and immunities that we've been able to survive in spite of everything else that has evolved on the planet.

We must take care not to lose this quality. The minute we do, we become as vulnerable as the plants and animals we raise, most of which would quickly fail in the wild.