If humans must use intelligence to perform genetic engineering, to meaningfully manipulate the genetic code, then what does that say about the origin of the genetic code itself!

Many have confused natural selection with evolution itself. Yes, Charles Darwin did show that natural selection occurs in nature, but what many don't understand is that natural selection itself does not produce biological traits or variations.

Natural selection can only "select" from biological variations that are produced and which have survival value. The real issue is what biological variations can be naturally produced. What biological variations are naturally possible? When a biological change or variation occurs within a species and this new variation (such as a change in skin color, etc.) helps that species to survive in its environment then that variation will be preserved ("selected") and be passed on to offspring. That is called "natural selection" or "survival of the fittest". But, neither "natural selection" nor "survival of the fittest" has anything to do with producing biological traits and variations.

The term "natural selection" is simply a figure of speech. Nature, of course, does not do any active or conscious selecting. It is an entirely passive process. Darwin did not realize what produced biological variations. Darwin simply assumed that any kind of biological change or variation was possible in life. However, we now know that biological traits and variations are determined by the genetic code.

Natural selection works with evolution but it is not evolution itself. Again, since natural selection can only "select" from biological variations that are possible, the real question to be asking is what kind of biological variations are naturally possible. How much biological variation (or how much evolution) is naturally possible in Nature? As we have seen all biological variation or evolution is limited to within plant and animal kinds.

Another reason for why macroevolution is not possible in Nature is because a half-evolved and useless organ waiting millions of years to be completed by random mutations would be a liability and hindrance to a species - not exactly a prime candidate for natural selection. In fact, how could species have survived over, supposedly, millions of years while their vital (or necessary) organs were still in the process of evolving!

How, for example, were animals breathing, eating, and reproducing if their respiratory, digestive, and reproductive organs were still incomplete and evolving? How were species fighting off possibly life-threatening germs if their immune system hadn't fully evolved yet?

Scientist and creationist Dr. Walt Brown, in his fantastic book "In The Beginning", makes this point by saying, "All species appear fully developed, not partially developed. They show design. There are no examples of half-developed feathers, eyes, skin, tubes (arteries, veins, intestines, etc.), or any of thousands of other vital organs. Tubes that are not 100% complete are a liability; so are partially developed organs and some body parts. For example, if a leg of a reptile were to evolve into a wing of a bird, it would become a bad leg long before it became a good wing."

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