What you left out in its entirety was the closing summary by Edward E. Max wherein he asks some rather obvious questions of Spetner and makes some similarly obvious observations
The Evolution of Improved Fitness: Correspondence with Lee Spetner
It really is obvious that the creationist cabal is hoping to avoid some rather glaring inconsistencies. We see for example that Spetner is critical of what he describes as “
macroevolution never being seen” but does he similarly question one or more forms of “creation” never being seen?
We know that the universe came into existence. As we are natural creatures, we are incapable of seeing supernatural phenomena and thus are logically limited to natural explanations. Theories exist which strive to fit observable phenomena into a framework not contradicted by observations. These theories have proven to be consistent with a large number of further observations. The logical implication is that theory will continue to be proven as more observations arise needing to be reconciled with extant theory.
On the other hand, assume that an observation will occur that cannot be reconciled with any natural theory thus proving a supernatural realm. Assume further that this supernatural realm is directly controlled by one or more gawds. Gawds are, by definiton, immortal, supernatural beings. They exist in an immaterial, eternal realm given charge over immaterial, immortal souls. The logical implication is that such a being would consider material, temporal existence irrelevant. These supernatural beings responsible for creation of the natural universe would, after having finished the action of creation, also become irrelevant and could then without repercussion, cease to exist.
These statements are logically consistent. Those looking for evidence of supernatural beings in logic would more profitably consider looking elsewhere.