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Why do we have a blind spot? Squid don't. Their retinal cells face forwards, ours face backwards. There's no advantage to backward-facing retinal cells, but they do result in a blind spot.
Why do giraffes have a nerve that goes all the way from the brain, loops around one of the main blood vessels connecting to the heart, and goes almost all the way back up their neck to the larynx?
Those are both downright stupid - no intelligent designer (to coin a phrase) would do things like that.
Adam
Yes all amazing things but I am not sure what you think that proves.
You decompose and your molecules are recycled as other life forms.
there is a finite amount of carbon on earth ,all life that has ever existed is using the same carbon.
you have no conscious thought so there is no feeling.
nothing to worry about .
a nice rest and parts of you become something else.
Current thinking on consciousness is that we each build and carry with us a mental model of the world. We update this model continually. The model contains a wide range of stuff, from visual images of our surroundings to values and attitudes. We are prone to question and reject, or even ignore, information which does not match the model. It's easier to reject something which doesn't match the model because it requires less effort than considering and updating. Failure to adequately weigh up information and update the model can lead to several conditions. At one extreme are various forms of madness. Nearer home is extremism, where someone latches onto a world view which is sold to them, rather than working out their own. Racism, nationalism, sexism, and other -isms are found here. Society often declares as insane any world view which is radically different from that societies norms.
This theory of consciousness needs a bit of digesting. It doesn't tell us whether anything is right or wrong. It does help us understand how we can manage uncertainty by holding contradictory views. It also explains why some people hold and defend beliefs which to others seem wrong.
It's an observation which, to me, may suggest something. I am fairly sure that we are in the stone age where it comes to understanding the true nature of the universe and, apart from pressing forward, we should keep an open mind about all things.
Seeking out adversarial arguments about such things doesn't make sense because all we have is our opinions based upon our own individual experiences.
Offset "(Emp) - a little heavy on the hyperbole."
There are many quirks about the human body that act as good evidence for evolution and the accumulation of adaptations to specific points.
Apart from the neck as described above, we have an appendix that does one of three things - either nothing at all, sickness or death. It has no known usefull function.
Another quirk may also point to humans being a missing link/transitional species. Generally speaking humans have a high mortality during birth than other mammals. One of the reasons postulated is that the human birth canal (female pelvis) hasnt evolved in step with the human evolution into fully erect posture and consequently babies get 'stuck' a lot more frequently. Another 100000years or so would have sorted it.
But i ramble on.