[Raymond Hendrix]

They would evolve in concert after a certain point. Perhaps they'd take turns being the bottleneck. What limits human eyesight now, the eye or the optic nerve? My guess is the eye, but who can tell what the situation was 1 million years ago?

You tell some good stories. Unfortunately, your "guess" and what you think "perhaps" happened "1 million" years ago is not really the same as the actual truth. It is just a story.

[Physicist]

You tell some good stories. Unfortunately, your "guess" and what you think "perhaps" happened "1 million" years ago is not really the same as the actual truth. It is just a story.

Berned asked for a story. His implication was that no such story was possible. As it turns out, such stories are not only possible, but plausible.

But I can do better still: at virtually every step where I described an eye with varying degrees of functionality, we can find eyes in the animal kingdom that remain as I have described.