its more like a ted talk but about some aspect of physics. Talks about complex topics that are understandable to a the non expert but you know you need decent science grounding. Seems like post docs have been the speakers but the guy now has been doing it awhile so im not sure if its like a career now for him. When they get deeper in a topic they link to earlier ones that have went through different important background pieces that could be helful to watch to understand the current topic. Topic bounces between recent developments to just interesting theoretical concepts and such.