The Physics Diet?

A clarifying taxonomy of the thermodynamics of weight gain: four positions on calories-in-vs-out, dismissing positions 1 and 4 as straw men, then focusing on the interesting 2-vs-3 debate (does basal metabolism genuinely vary between people, or is it all appetite/exercise drive?). Marshals real evidence — MRAP2-knockout mice that fatten before overeating, DNP, the 67% BMR variance between equal-lean-mass individuals, and the Bouchard identical-twin overfeeding study (3x variation in weight gain) — and the point that a rising obesogenic tide disproportionately hits the genetically susceptible.

Quality 69 · Strong. High-Strong: a clarifying, evidence-rich framing of a confused topic (the four positions; the Bouchard twins), but a taxonomy/survey rather than a big original insight, and short. 69.

Claude’s paradigm shift 48 · Moderate. Sharpens an existing debate with good evidence, moderate novelty. B48.

Real-world impact 2 · Minor. A useful within-discourse reframe of the diet/metabolism debate; no material reach. RWI2.