Theory 40/Sinkholes/Rate lens
Collapse Timing Is Dissolution
The claim
Sinkhole collapse timing is set by the rate of dissolution relative to soil cohesion, not by cavity size.
01Mechanism
A cavity grows until its roof can no longer span it; the race between growth and roof strength sets the failure time.
02Prediction
Collapse timing should track the ratio.
03Refutation
Timing tracking cavity size would remove cohesion.