Originally posted by stolisGreece
reply to post by jiggerj
We must not forget that physical laws are very convenient so life can emerge, its almost as everything is designed with life as ultimate goal.
You make your point well, but somewhat back to front. The fact that life appears to be designed to fit within the laws of physical reality must point
towards a physical process, such as evolution, not meta-physical, like individualized non physical consciousness that are the creators of
I would accept your argument much more if there were plentiful examples of life that defied the natural laws, then we could say perhaps there is
something more going on here.
As life evolved constrained by the laws of physics, it is only natural for the result of evolution to appear to magically fit in with said laws.
On the evolution of the eye; to look at the eye as it is now, such a perfectly formed piece of equipment I can understand how an individual could
wonder how something so complex could just happen to form by accident.
I would say to them it is no accident, but the result of many iterations of collections of photo sensitive cells, each useful to their possessor, over
a period of billions of years.
Take two fictional worms, one worm born with one photosensitive cell, and another with a random genetic mutation that gives it two photosensitive
cells.Let's assume that the worm with two light detecting cells is more able to survive, possibly by being better equipped to detect a predator from
above, or the best time of day to expend energy to look for food.
The worm with the dual cell mutation will be better able to pass on his genes to the next generation than the worm with the single cell. Therefore
over the course of time his mutation becomes the norm as the old worm dies out due to competition from the new, better, worm 2.0.
Now over the course of billions of iteration and random mutations, from a single photosensitive cell, to many, to different photo sensitive cell
structures, to a protective protein casing for all these cells, to a covering that can be manipulated by muscles to focus light from different ranges;
we have the human eye. Not by design, but simply by the fact that genetic mutations with a positive effect on the competitiveness of the organism lead
to that genetic mutation becoming dominant within a species.
Obviously the worm example is a simplification and I don't know on which organism the first primitive photosensitive cells came into being, but there
are many different iterations of the eye in many different creatures, some better than ours, maybe like hawks, some worse, perhaps like squids.
Even something as complex as the eye, or, bat sonar hearing, although it seems to us to be amazing, can be rationally explained by natural selection.