If God then Poor Designer

According to Ken Ham, with his spectacles perched prominently on his nose, “the eye is a perfect design by a perfect creator”. The nerves of the human eye are directly attached to the front of the retina. They have evolved to be mostly transparent to minimise blurring of the image. Brain software cleans up the image as best it can, so that we have a somewhat acceptable image to interpret. In order to get the image to the brain, a hole in the retina allows the nerves through. That area is blind and ignored so that we don't see a black area. This poor design is also prone to retinal detachment. So much for a perfect eye by a perfect designer. 

Of course the octopus got the good design. The nerves are attached at the back on the retina. No blind spot. No obstruction of the incoming image. Luck of the draw gave us the bad design. Just what you would expect in an evolutionary system. Not what you would expect from a perfect creator unless that creator made the octopus in her own image.

When we connect the cords behind our TV sets, PVRs and sound systems, we always end up with cords caught inconveniently around other parts. This phenomenon also happens in nature. In the early organisms and modern fish, the laryngeal nerve was quite directly connected. As evolution  produced a divergence of types with necks, the nerve was caught behind the aorta. As necks lengthened the nerve from brain to larynx (Recurrent Laryngeal Nerve) had no option but to lengthen. In giraffes it can be 4.6 metres long. This would be poor design if indeed it had been designed, but just the sort of thing that arises in an evolutionary system.

Image: Recurrent Layngeal Nerve

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