I take your point, obviously Darwin was not the be all and end all of the ToE
FINALLY, you are learning. About bloody time.
Darwin is just a pioneer in the field of biology with regarding to evolution. But we don't live today in the 19th century. Biologists and biology have gone further with evolution, and found there are other possibilities for evolution to occur among animals or plant life, other than Darwin's Natural Selection.
Natural Selection is just one biological mechanism for change (evolution). There are others - four of them.
- Mutation
- Gene Flow
- Genetic Drift
- Genetic Hitchhiking
That doesn't mean that Natural Selection (NS) has become obsolete. Far from it.
Natural Selection is still relevant theory to evolution, today, because of new scientific discoveries, have increased our knowledge about Natural Selection, so NS has progressed further, with the other mechanism, like Mutation, for instance, and with further knowledge and methodology that help understand more about NS, like DNA and RNA. (Meaning mutation complement Natural Selection, as well as to other evolutionary mechanisms.)
NS related to natural forces from the environments that affect genes. Forces, like the climates, terrains, the availability (or scarcity) of food or other resources. Each generation of life, must learn to adapt to changing environment, and one of the means of adapting is at genetic level.
The potential problems he cites in Origin- were only hypothetical in his day, but through science came to be realized. The fossil record DID reveal large gaps and sudden jumps, as opposed to a smooth continuous process. The mechanics (DNA) that drives the process are NOT accounted for by the process itself. Darwin's arguments against evolution, not mine.
Arggghhhh!!! For every tiny step forwards you make, you take a couple of steps backward.
First off, Darwin doesn't know everything to there is to know about biology, or even about his Natural Selection.
Second, Darwin certainly didn't know anything about DNA, because he wasn't aware of this nucleic acid. So of course, there is going to be gaps between what he do know and what he don't know.
If you want to really understand about Natural Selection, then read some biology textbooks, and not Darwin's Origin. What Darwin knew is basic, when comparing what we do know now about evolution.
Stop getting fixated with the Origin, and what Darwin is missing. Science progresses forward.
You getting fixated by what Darwin's know or say, but ignoring all future development of this theory in the 21st century, would be something like me, using the 19th century electrical telegram as a mean of communication, and ignoring all other telecommunication since then, like telephones and we no longer need wires for telecommunication, like CB radio, satellite phones, and of course the mobile phones.
And lastly, you wrote:
The potential problems he cites in Origin- were only hypothetical in his day, but through science came to be realized.
That's not true.
He travelled the world on the HHMS Beagle during much of the 1830s, before returning to England. All that he had written (and later published in 1859) were based on his observation of animal and plant life. His conclusions are based on evidences that he have managed to record in his travel journals, and meticulously drawing what he had observed.
Recording evidences, and directly observing what he see, make his theory on Natural Selection (in his On Origin of Species, as well as his other works) make it not merely a hypothesis, but valid experimental theory. Other biologists, including botanists can go to the places, further demonstrate that is more than hypothesis.
In science, if there are evidences available, and other scientists can verify with more evidences, then it no longer remain hypothesis.