40 to 60 per cent of the genetic edits we've made defy human explanation, even after the fact. Up to a third are in genes that have no known function. And imagine write a third of the edits in gines that have no known annotation. We dont even know what it does. Ah, so we actually know there's something going on, and then we kind of know an area where you might be able to make a change. It's not the same as saying you understand what's going on....