 The physicist turned philosopher, Rudolf Carnap (1950), recalls how thermodynamicists explicated “heat” into the more precise concepts of temperature, thermal energy, and heat transfer. Although the new terms are not synonymous with the old, they bear enough similarity to disarm the objection that the physicists are merely changing the topic. Our questions, like our children, can mature without losing their identity over time. (The idea of there being two different questions being asked is pursued in Carroll 2012, Other Internet Resources.)