In the lesson titled “Dependence, Part 1,” the discussion revolves around the inevitability of dependence due to societal structures, specifically illustrated through the example of healthcare costs in the United States. The lesson presents a video where British individuals are asked to guess the costs of healthcare services like an ambulance call-out, EpiPen, and childbirth in the U.S., which highlights the surprising and high prices compared to the UK’s public healthcare. This comparison emphasizes the critical nature of dependence on systems and structures within society.