 So did you happen to sit in on the knee surgery about three and a half weeks ago? I was not in knee surgery, but I have seen several in my career. I mean, the technology, just staying on top of the technology is, to me, unbelievable. I mean, we've seen just in the last whatever it's been, five years, robotic technology, knee surgery, heart surgery. The list goes on and on. And Lord knows what's next. Absolutely. It just keeps coming.