In this podcast episode, we explore two compelling themes: innovation and responsibility. It introduces ChatBIT, a military-focused AI tool created by Chinese researchers, which raises crucial questions about the risks associated with open-source AI technology. At the same time, we marvel at the wonders of ancient engineering by examining Roman concrete, known for its remarkable self-healing properties that could inspire modern construction methods. Together, these discussions highlight the dual nature of technological progress—showing how it can either benefit humanity or present significant dangers, depending on how it is used.