Bill and Dr. Jonathan Hill had a conversation about Jonathan's professional journey in the medical field, including his experiences training in Scotland, London, and the US. They discussed his current focus on molecular biology and stem cell research, his interest in treating patients with CTO's, and his research on angiogenesis. They also talked about Jonathan's shift from stem cell research to focusing on CTO's, the importance of being open to new opportunities and experiences, and the financial challenges faced by interventional cardiologists in the UK.