Phat:
OK I'll confess. I know little about what Darwin wrote. It does not interest me. Now what?
It shows how little you (and biologists) know or understand about biological evolution. Here is a key paragraph from Darwin's
On the Origin of Species found on page 115:
For it should be remembered that the competition will generally be most severe between those forms which are most nearly related to each other in habits, constitution and structure. Hence all the intermediate forms between the earlier and later states, that is between the less and more improved state of a species, as well as the original parent-species itself, will generally tend to become extinct. So it probably will be with many whole collateral lines of descent, which will be conquered by later and improved lines of descent. If, however, the modified offspring of a species get into some distinct country, or become quickly adapted to some quite new station, in which child and parent do not come into competition, both may continue to exist.
This paragraph gives the essence of Darwinian evolution, competition (which Darwin also calls the struggle for existence, and modification by descent. Biologists have done a reasonable job formulating the mathematics of competition, but they have failed to correctly describe the mathematics of modification by descent. And biologists don't understand how competition affects modification by descent. Since this is not of interest to you (because this is how bacteria evolve drug resistance and why cancer treatments fail), I suggest you find another thread that you are more interested in.