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Tuesday, August 30, 2005

God created man? (II)

Continuing from why our eye is not designed by God

Less-than-perfect vision

Incredibly, this is exactly how the human retina is constructed. Visual quality is degraded because light scatters as it passes through several layers of cellular wiring before reaching the retina. Granted, this scattering has been minimized because the nerve cells are nearly transparent, but it cannot be eliminated because of the basic design flaw. Moreover, the effects are compounded because a network of vessels, which is needed to supply the nerve cells with a rich supply of blood, also sits directly in front of the light-sensitive layer, another feature that no engineer would propose.

A more serious flaw occurs because the neural wiring must poke directly through the wall of the retina to carry the nerve impulses produced by photoreceptor cells to the brain. The result is a blind spot in the retina -- a region where thousands of impulse-carrying cells have pushed the sensory cells aside. Each human retina has a blind spot roughly a millimeter in diameter -- one that would not exist if only the eye were designed with its sensory wiring behind rather than in front of the photoreceptors.

Do these design problems exist because it is impossible to construct an eye that is wired properly, so that the light-sensitive cells face the incoming image? Not at all. Many organisms have eyes in which the neural wiring is neatly tucked away behind the photoreceptor layer. The squid and the octopus, for example, have a lens-and-retina eye quite similar to our own, but their eyes are wired right-side out, with no light-scattering nerve cells or blood vessels in front of the photoreceptors, and no blind spot.

Inside-out development

Evolution, which works by repeatedly modifying preexisting structures, can explain the inside-out nature of our eyes quite simply. The vertebrate retina evolved as a modification of the outer layer of the brain. Over time, evolution progressively modified this part of the brain for light sensitivity. Although the layer of light-sensitive cells gradually assumed a retina-like shape, it retained its original orientation, including a series of nerve connections on its surface. Conversely, mollusk eyes are wired optimally because rather than evolving from brain cells, which have wiring on the surface, they evolved from skin cells, which retained their original orientation with the wiring below the surface.

The living world is filled with examples of many other organs and structures that clearly have their roots in the opportunistic modification of a preexisting structure rather than the clean elegance of design. This does not, despite the fears of "intelligent design" advocates, amount to evidence against the existence of a Deity. Properly understood, as Darwin himself pointed out, it only deepens our respect for the power and subtlety of the Creator's remarkable ways ... Emmm, Darwin believes in God?

Yes, Darwin is a fan of His Almighty but not the Bible (not yet) or just about any other classic holy books written milleniums ago and insist every word in it is the complete whole truth ...

Conclusion: The lousy eyes we have today are very unlikely designed by God from scratch (or He must be sleeping in His job) but that doesn't mean we are not created by God.

So what could be the explanation behind our sloppily designed eyes? He doesn’t love us enough to give us the best eye? Again, not at all. It's simply the way God has intended the world to be ... the closest word to explain the phenomenon is NATURE.

I am sure there are moments in your life you would ask "Where do I come from?", "Why am I here?" ... you are not alone, this is natural and it's part and parcel of life. Lets check it out a little further next.

6 Comments:

Blogger Creationism said...

"Darwin is a fan of His Almighty"

I have long suspected scientists do believe in the supernatural but I have no idea what exactly do people like Darwin believe in? Are they convinced there is a beginning to this world?

5:08 PM  
Blogger Tom said...

Do you have any secrets on how to keep a blog updated more easily? You make keeping an updated blog look so easy ;-)

As you might know, reading blogs can be a dangerous business. One blog I visited actually opened my PC's cd-rom. Others have scripts in their pages that do all sorts of things. God knows what they put on my PC.

I use Evidence Eliminator to clean my PC of this "filth" daily. I suggest that you should too for your own privacy and for your PC's safety.

I admit it, I sell Evidence Eliminator. I usually sell it for ten percent off. But because you are reading my comment (thank you), I want to give you half off. Just send me an email at info(at)evidence-eliminator-info.com and I'll reply with a special URL where you can get half off.

If you search for evidence eliminator com in the search engines, you may find other sites like my evidence eliminator com site. But you won't get this special offer (smile).

Take care, and love to hear from you if you have any ideas to share, or whatever.

5:46 PM  
Blogger Blogosaurus Rex said...

RE: Evidence Eliminator.

Bull. Bull bull bull bull bull. Things like this can only happen with Active-X in Internet Explorer. And only if you answer "yes" to the question: "Do you want to install and run... blah blah" Always say "no", and you will never have a problem.

Or, you can just use Firefox and always be safe for free. Nuff said. Don't use Internet Explorer if you're worried.

Labona, you've been la-spammed.

10:24 PM  
Blogger La Bona said...

Thanks Gwhiz2k

I used to have a similar program called 'Goback' ... Oh man, don't fool around with invasive software like that, it can be disasterous. I remember the 'Goback' program not only screw my OS, I virtually got stuck for a good few days ... with my hands tied.

12:27 AM  
Blogger postliberal said...

There's a special setting on blogspot, where you can filter out spam (asking commentors to enter a code that's on the screen). To be reccomened.

6:47 AM  
Blogger La Bona said...

Thanks PL but don't you think such 'extra' step will discourage people from commenting? It is also not foolproof of non-robot, I mean human spam.

Nonetheless, thanks and I'd take a look ...

9:45 AM  

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WARNING: Blind obsession with prophecy can be perilous or even fatal, reader discretion is advised! Submitted to God as His worldly Activist on a non-exclusive basis since June 15, 2005 1:00 am ET. “La Bona” is a professional name inspired by God; it means "The Righteous", “The Virtuous” or simply “The Good” in Esperanto (a neutral international language). DivineTalk® is an Open Commentary Forum dedicated to God for His Children to engage in dialogue, discourse and debate on laws, standards and values on morality, lifestyle, ethics, business and just about anything else related to their life. God enlightened to have His Words improvised and updated with the prevailing circumstances so that the divine guidance, dogma and policy will evolve with time and stay relevant to His Children in the very era they live in as the way forward. La Bona is a Truth Seeker, Myth Buster, Freedom Fighter, Cyber Activist, Liberal Animal, Good Samaritan, Messiah Wannabe and in order to serve His Children of diverse backgrounds, La Bona is motivated and aim to eventually multitask as Divine Representative, Contemporary Prophet, Celestial Executive, Deity Clairvoyant, Holy Spiritualist ...

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