Isn't that even less likely that the environment and the system would both change, keeping the system changes always beneficial? More variables required to change.
Since the eye is soft tissue, the short answer is "gone to dust millenia ago."
I'm actually referring to evidence of things evolving right now, or at least during recorded human history.
It seems to me that there would be a multitude of wrong turns that would be observable at any moment, if random changes are driving things.
The roomful of monkeys trying to type out that line of Shakespeare would generate a lot of nonsensical text in the meantime.
"Isn't that even less likely that the environment and the system would both change, keeping the system changes always beneficial? More variables required to change."
Why am I screaming "YOU F***ING DOLT!" at my computer?
The changes are NOT always beneficial! That's why species go extinct, you idiot!
"I'm actually referring to evidence of things evolving right now, or at least during recorded human history."
OK, I'm going to go on one of my patented rants:
LEARN HOW TO COUNT, YOU IMBECILE! IF YOU CANNOT UNDERSTAND THAT HUMAN LIFESPAN IS APPROXIMATELY 75 YEARS, AND EVOLUTION HAPPENS ACROSS MILLIONS OF YEARS, THERE IS NO F***ING POINT IN HAVING THIS CONVERSATION!
"It seems to me that there would be a multitude of wrong turns that would be observable at any moment, if random changes are driving things."
Yes, they're called extinctions.