The speaker discussed how energy flows through nature, humans, and businesses. In nature, there is a flow of "doing" and "changing" to survive and adapt. In humans, there is a flow of "knowing" and "thinking" to acquire and apply knowledge. In businesses, there is an "operations" flow that creates value, and a "projects" flow that evolves the business. The speaker argues that since businesses are sustained by human energy, they are living organisms. Process science can help businesses by identifying and removing barriers to the optimal flow of energy through operations and projects.