So are you going to tell us who this mystery author is? I would like to know.

I don’t see how observation of NS does not imply developed from NS. If a process is ongoing and works then one can assume it has always worked in that manner, therefore speciation from NS is the most viable and logical reasoning for the species which exist in the world.

I also don’t see how NS is simple. Conceptually, yes it is simple but to understand the hows and whys of NS it requires more than a simple understanding of biology. There are many different processes which contribute to NS, each process requiring knowledge of biology, chemistry and physics. Each process clarifies the picture, but even missing one of these points will result in a failure to truly understand how NS works.

I would also suggest reading, “The Greatest Show on Earth: The Evidence for Evolution” by Richard Dawkins. He can get a little preachy at times but it very clearly outlines the processes involved in evolution, why they work and how they have been tested, including NS.