my guest to day is david big. melanie is a professor of chemistry at princeton university shares a 2021 nobel prize in chemistry for the development of asymmetric organic get alice's day was agreed to join me to explain the developments in and the importance of catalysts in chemistry welcomed david mcmillan. mr. mcmillan, when i tell you that the equivalent of tearing through a telescope at the income, prehensile ability of space for most of us, is the same as pairing into a microscope. but the incompetence ability of matter, you at least could be our guide. in some of this stuff, which seems to be better known than the, than the stuff you get from space and the telescope. would you, would you just start off by telling us, what is what it is you got the nobel prize award for? sure. thanks bill. well, so we got it for this thing called a symmetric organic to, to alice's was sunday organic, it's allison was a work that i made up to define what it was we were doing. sounds like you have to do that again. but basically, if you look around your studio there, or if i were to write my office, absolutely. everything around us is made by a chemical reaction. everything. an