But one can conclude that a 92 Volvo and the 75 Volvo both come from the same original design; an vehicle powered by an internal combustion engine. Without the one, you could not have the other two. We can conclude that all domesticated dogs came from the same root animal, the wolf. We can conclude that all bunny rabbits came from the same common ancestor rabbit. We can conclude that many different mutations of a virus came from the same strand.
My question is; if one is to be called a scientist, or if one is to enter into a scientific discussion, one has to agree that it is possible that the theory is correct. And, if one were to be impartial, one would understand that there is overwhelming evidence that this theory is closer to being the truth than all other theories, especially ones with little or no scientific basis.
While the theory isn't 100% proven, it is a valid theory, and there is no reason to simply disbelieve it because it isn't 100% proven. Most scientific theories aren't 100% by such standards of proof. But to just dismiss it as unproven and therefore unreasonable is wrong. We will make no scientific progress if we simply brush aside mountains of evidence and reasonable conclusions as being wrong because it doesn't necessarily lead to those conclusions... what other conclusions could it lead to?
If new species don't evolve from older ones, then why have there been multiple mass extinctions, yet there's an extreme diversity of life on this planet? Why do species die out at a rate of hundreds or thousands per year, yet there are still millions of differing species on this planet? Why do we detect new species all the time, and how have we ourselves created new species using various natural methods?
Why do new species appear at times in the fossil record? Where did they come from? Why did they suddenly appear and disappear? If they were all "created" at once, where did the new ones come from and why did it take so long for them to get here?
Why did human beings only arrive in the fossil record recently? Why do they look very similar to many other forms of hominids? Why do they resemble various species on this planet genetically and physically in a pattern which matches the arrival of those species in the fossil record, according to present theories of evolution? How do we explain all of those coincidences if we are to assume that creatures do not evolve or that humans have not?
There is no other scientific explanation that I can see. We weren't beamed here by aliens, or at least there is zero evidence of that, and we are not significantly different in terms of biology from other animals, and we are part of nature and part of the fossil record as well.
If one is to seriously challenge this theory, one must bring more to the table than mere skepticism and/or religious texts. There needs to be contrary theories based in science, and right now, there aren't any. Until then, perhaps we should consider this our best working theory.
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