Scientist: The traditional view of nutrition, which focuses solely on calorie counting, is outdated. It oversimplifies the complex ways in which our bodies process food and convert it into energy. You can't merely tally the calories from food labels and then exercise to burn off those calories. Nutritionist: So you're suggesting that this contradicts the fundamental principles of thermodynamics. Scientist: Exactly. The human body, as a thermodynamic system, expends energy even when at rest. It requires energy for vital functions like circulation, cognition, and other essential processes that occur simultaneously. This traditional view fails to consider the calories burned just to maintain basic life functions. The scientist responds to the nutritionist's challenge by _____.