Hurray for Pseudoscience!
How so? Isotope data are hard numbers, no?
Again I’m curious, does the story have it backwards about the isotopes and the water temperature? Water molecules containing heavier oxygens would be more reluctant to evaporate than their lighter counterparts. This means they would be favored at higher temperatures.
Also, what mechanism governs the mix of the isotopes? Is there some way of checking this? Otherwise our whole temperature scale could scoot up and down over time and we would not know it.
favored => favored to remain in liquid state, that is.
Yes, they are, the issue is knowing what year it starts and stops in.