jonathan witten is executive director and head of virginia runs auditory global program, which developed this treatment. welcome. we saw this little girl going from being deaf to here, and can you tell us how with this was possible to yeah, i mean it's, it's, it's quite a sounding right. so this, this is a combination of, of many years of work really going back even decades. um, you know, the start of all this is really being able to understand what was causing the hearing loss for many children who are born, you know, completely deaf. and as we learned, you know, which proteins weren't t for which kids. we started being able to, to conceptualize, hey, maybe we can develop technologies that could actually deliver that missing specific protein to a specific cell type in the year. it's a very elegant and as you can see and, and uh, you know, the story that's been described the, the outcomes are quite beautiful when you can deliver with the, with technology. so like this and, and the surgery tucker, just 16 minutes. what do they do during surgery? sure. so um, so the 16 minutes is actually