Noise doesn't work. If a mutation results generation of noise, it lowers the signal to noise ratio. If it's lowered to far, the organism fails to persist. The original organism continues on.
"Not only are they still trying to show how it evolved; they are still studying the mechanisms and how they work."
This can always be said about something, or other. What's important to note is what is known now and also, to compare it to the state of affairs in knowledge and understanding that existed before.
"Fascinating, don't you think? How did they evolve? Did they evolve? How do they work?"
Subtle. Lack of knowledge and understanding does not negate what is known and understood. In fact, what is known and understood is used to increase the content of that set and reduce the content of the set of unknowns.
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