Jim talks with Samo Burja about the ideas in his recent article "Geothermal Energy Turns Planets Into Power Sources." They discuss the heat beneath the earth's surface, contributors to the heat, technological dependency between fracking & geothermal, the math of electricity, earthquake risk, the limits of current geology, the value of better drilling tech, new approaches to drilling, gyrotrons, plasma torches, whether our civilization actually needs more energy, the local optimum of fossil fuels, bureaucratic incentives in energy, investment of social surplus, scientific welfare, metascience, giving academic tenure to brilliant 25-year-olds, a defense-favoring military epoch, the math of geothermal vs other combinations of energy sources, visions of a clean-energy future, and much more.