Living things are imperfect replicators. Imperfect replicators change from generation to generation. Imperfect replicators that are subject to natural selection can become better at replicating. That's the essence of adaptive evolution.
Again, microevolution, or
adaptive evolution, is not in dispute nor does it violate first principles.
Apparently you mistake your assumptions for universal truths.
Self--evident claims are not assumptions.
That is one view of things, but hardly the only one.
Which other epistemological views do you claim as superior?
Nonsense. We do not directly observe water vapor. Rather, we construct a model of water vapor, and of the molecules that compose it, and infer properties based on that model. We are better able to directly observe evolution occurring than water vapor.
Kindly remember how we framed this exchange:
I have concluded that, at a minimum, all animal life on Earth descends from a single common ancestral population ...
Again, let's stay within the framework -- animal life and common ancestry.
In any case, what does observability have to do with the principle in question or your argument, anyway?
Observability, or more generally sensibility, is the method we come to know about things.
Does the principle only apply to things we can't directly observe?
No, however methods of indirect observation that require specialized equipment or specialized training to operate introduce the possibility of "machine noise" or operator-confirmation-bias. So we must be more careful in accepting the validity of such evidence.
Because I'm trying to understand your reasoning in a simpler arena -- as I stated. As you must be aware, the vast majority of philosophers, including philosophers of science, see no logical problem with evolution (including evolution of 'higher' forms of life) occurring. You do.
No, I don't have a logical problem with evolution; only a problem with the modern or neo-Darwinian explanatory claims for macroevolution. And, as agreed, bounding the exchange to the evolution of all animal life as is not at all a difficult arena.
Your
ad populum argument is, of course, fallacious.
As to the seeming lack of dissenting scientists, it is logical to presume that a biology scientist at the department level who departs from the "party-line" risks losing their grant money. Or at a minimum, risks professional opprobrium.
That means you're not engaging in some standard philosophical argument -- it's an idiosyncratic one, and frankly one that makes not a lick of sense to me. Which means you have to explain your reasoning process. So I'll ask again: what reasoning process do you go through to determine whether photons can produce electrons?
Yes, I am making a philosophical argument. If the argument does not make sense to
you then perhaps it is not a problem with the argument.
For a more detailed philosophical argument, see:
kolbecenter.org
Do you have any evidence for that missing link that would allow common ancestry for apes to humans -- the apes in the wild that engage in articulating speech?