Theory 73/Timing & Gating/Rock weathering
Weathering Needs Cycling
The claim
Frost weathering is set by the rate of freeze-thaw cycling rather than by minimum temperature, so a milder climate with more cycles can weather faster.
01Mechanism
Each cycle pumps water into cracks and expands it; damage accumulates per cycle, not per degree of cold.
02Prediction
Weathering should track cycle frequency.
03Refutation
Weathering tracking minimum temperature would remove the cycling term.