The discussion centers on the feasibility of transitioning from a Doctorate in Business Administration to pursuing a PhD in Physics. The individual expresses regret over not choosing physics earlier and wonders if it's too late to fulfill their dream of becoming a scientist at the age of 28 while currently employed in a multinational corporation. Key points include the challenges of securing a job in academia, as only about 10% of those pursuing a physics PhD become professors, and the reality that many physics PhD holders struggle to find relevant employment. There is a suggestion that instead of aiming for academia, leveraging their business background to start a science-related business could be a viable path. The conversation emphasizes the importance of a strong foundational understanding of physics and math for PhD research and highlights that having a business degree can be advantageous for entrepreneurial endeavors in the scientific field.