You are right: noone can figure out evolution. The dogma of natural selection has been used as a cover for hiding science’s failure here. The design folks have made their point, but ‘design’ is a metaphysical concept and suggests the basic framework of science is going to stumble. The issue of the metaphysics of evolution lurks over the whole field.
Baggott, page 8,sounds like Schopenhauer:
The Reality Principle
Reality is a metaphysical concept and as such is beyond the reach of science. Reality consists of things in themselves, of which we can never hope to gain knowledge. ….