It is interesting that evolution “theory” proponents such as
this one will point out that the theory of evolution is on the same footing as theories about gravity, but clearly they miss the point completely.
The author tries to focus on the manner by which we inductively arrive at a theory of the universal fact of gravity to argue that, similarly, we can argue for natural selection acting on random mutations as universally accounting for all adaptive change. That we have no problems doing so with gravity would seem to put into question why we are resistant to doing so for NS acting on RM. At least, that is the author’s point.
The problem is that the two positions are fundamentally different in type. That bodies with mass attract (gravity) is not a theory, it is an observable fact. That living things change in order to adapt is, likewise, an observable fact. These are not the theoretical aspects in question.
An explanation for why gravity is an observable fact is fraught with difficulty. We don’t know or fully understand why gravity works. So, to compare apples to apples, NS acting on RM is an attempt to explain why adaptive change is observed. We don’t need to deny that adaptive change occurs in order to deny the Darwinian account for why it does, just as we don’t need to deny gravity to question theories that attempt to account for it.
So for the author of that article to make a case, which her/his (Ellery could be either, I suppose) article doesn’t, s/he would have to compare theories that attempt to explain the fact of gravity to Darwinian notions that try to explain the fact of adaptive change. Neither of these attempts at theorizing or explaining are matters of fact.
What does bother me is that the author represents the National Center for Science Education and, yet, cannot make a fundamental distinction that leads her/him to invoking a false analogy.
We do need better science education, but we also need better thinking skills, i.e., education in logic and philosophy.