I would hope they are constant. Question is, could all the stuff going down, right down to the atomic level back around the 'split' , and the introduction of death to the cambrian/Eden world-have altered the rate? The concern here is not what the rate is now.
pure bollocks - you may as well say "maybe the green dragon fairy did it".
Besides, if it was true science, they would not be starting from the premise there was no God, then going on trying to validate their belief.
Go and read a basic science book. The process says NOTHING about God, nothing at all. Science is not the practice of trying to prove or disprove anything about God. Zeus by his very nature is untestable and beyond the reaches of science.
They don't started from the premise "there is no god", that's just warped fundie thinking.
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