Like most people, I grew up seeing the chart of ape to man and was taught that earth's origins began with the big bang. I was told that all that I see began with primordial ooze.
The problem is, there are too many gaps and too many leaps to make this believable. How many cells had to develop and be found to be useful and thus retained to develop a single eye? Hundreds? Thousands?
I can accept that animals that don't necessarily need eyes do not have the vision of a human. I can accept that a human doesn't have the vision of an eagle. But I can't fathom how simple cells could develop into such complexity. Did nature determine that a means to see the world meant the necessity of incorporating a multitude of individual cells each performing a specific purpose in unison could be achieved all at one time?
Speaking of eyes, looking into the eyes of a fellow human being or a dog or a cat I see something that is not physical. I see sentience. I see a living being that is capable of joy, anger, jealousy, love.
Emotions have been explained as a result of chemicals in the brain. Certainly, there are drugs that alter those chemical levels and thus alter mood. I accept that fact. However, my next question is this,
What chemicals make it possible for me to even think about these things? Does that soul exist? Could a soul have been developed from primordial ooze?
Personally, I do believe in intelligent design. I believe that certain features of all species have changed over time to adapt to their environment. I do not see evidence that one species developed into another. I do not see the desire to live as having a molecular component but rather as a feature of the soul.
Life is a truly wondrous thing and I obviously do not have the answers to the questions that have been asked since at least all of recorded history but I do believe that the answers that I feel I have work for me and that releases chemicals in my brain (ie. I am happy with that.)