This is the third episode of a 4-part series on nuclear energy with my guest Paul Rix. In this episode we continued with our discussion on fission technologies of the future including fast neutron reactors, high temperature gas, TRISO fuel, and Thorium. The intent of this series is to give listeners a sufficient understanding of the political, economic, technical, and scientific aspects around nuclear energy to form educated opinions on how it fits into green energy and the energy transition.