Not from me. Populations change as a result of variation and selection, but variation itself is neither predictable nor guaranteed.
Read it again. Population and probability are intensely related.
But of course when you say that variation is neither predictable nor guaranteed, what is the value of the theory?
Ex Post Facto theory? Theories are about prediction.
You are defending a theory that:
Does not predict outcomes.
Does not guarantee outcomes.
I'm starting to doubt whether your belief qualifies as a theory. I know what it's usefulness is from you conception.
Populations will change, and we cannot know why or how. But it is the result of variation and selection, which we can neither guarantee nor predict.
Doesn't that sound extremely squishy?
DK