Theory 86/Planetary/Crater chronometry
Surface Age Is Flux Against Erosion
The claim
Crater retention age is set by the ratio of impact flux to erosion rate, so an old surface with fast erosion looks young.
01Mechanism
Craters accumulate and are erased; the equilibrium density reflects both rates, not time alone.
02Prediction
Apparent age should track the ratio.
03Refutation
Apparent age tracking time would remove erosion.