I think GP is referring to this sentence near the end of the article: >Cooling Yellowstone in this manner would happen at a rate of one metre a year, taking of

I think GP is referring to this sentence near the end of the article: >Cooling Yellowstone in this manner would happen at a rate of one metre a year, taking of the order of tens of thousands of years until just cold rock was left. And I think that sentence is vague enough that any argument using only it as a basis will be pretty weak.