Dr. Brad Marston is a professor of physics at Brown University and Associate Director of the Brown Theoretical Physics Center. A graduate of Caltech, he received his Ph.D. from Princeton University and did postdoctoral work at Cornell University. Brad is an Alfred P. Sloan Fellow and is also an Apple developer. Brad and I chatted about his computational and theoretical physics career. At Caltech, he attended physics classes taught by two of his heroes, the legendary physicists Dr. Richard Feynman and Dr. Kip Thorne. There, he developed his interest in quantum physics and computational models. Later, when he left Sun workstations behind, he adopted the UNIX-based Mac and Xcode as his tools of choice. That’s what he used to build his visual climate model, GCM, already compiled for Apple Silicon. Tune in and geek out with me and this amazing physicist and Mac guru.