[xzins]

How old is the old?

It is your limiting factor for allowing all of these fascinatingly, awesomely complex systems to simultaneously develop.

And that's not counting the time to come up with life in the first place.

[Alamo-Girl]

Thanks for the article, bondserv! And thank you both for the heads up!

I agree with boris concerning the overall enigma of eyeness in evolution theory!

Y'all might find the following article - from the evolution side - frank and refreshing:

How the Eye got its Brain (pdf)