jabechler said:
As I understand the broad picture of evolution, It is the idea that as biological creatures evolve through selective adaptation, survival of the fitest and the many other theories ,that acquired knowledge increases as well thus propelling the species to higher and higher plans of evolution. if this is true and we relate it to the ancient civilizations which clearly had knowledge we dont have today and abilities we dont have today how could the process have contiunued.
one simple example of this knowledge i see in my profession is that homes built 100-200 years ago with somewhat primative technology, many are still standing how be it not level or plumb but sturdy. Homes we build with modern building techics are falling appart within 30-50 years. Yet structures we cant duplicate today are being found to be 2,3,4 or even 5000 years old. Our physical stature has declined the plant life has declined and the theory of evolution cant begin to explain it.
I love the dialogue and will look for facts to show these ancient civilizations did exist and is reinventing earths history and the evolutionary process.
What ancient knowlege once possessed and now lost are you referring to?
Our knowledge in the science far surpasses that of the Romans, for example, whose highest professions were rhetoric and horse husbandry.
Accomplished engineers they were, and we stand upon their shoulders, but we can do what they could only dream of.
Your house analogy doesn't work either, because you fail to take into consideration how the economies have changed over time.
My parents have a farm whose house and barn are both over 130 years old. They both stand tall and straight (straight enough at least). But if you look at how inefficiently each of those buildings is built, and then calculate what it would take in todays money to build the same thing the same way you will see that both are simply too expensive. Mainly because they are both over engineered. We have lighter, sturdier and more economic materials today that allow us to get the job done more efficiently and avoid the biggest cost in construction - paying for the labour.
But now to the main point regarding your conception of evolution: while not random you go too far in suggesting the evolution is hierarchal, that one creation can be more evolved than another. Evolution isn't a ladder that leads to some divine plateau. It's a tree that branches out into a myriad of different pathways.
Regarding whether or not our physical stature has declined, you have to define who you are talking about. From what I've read on the topic, overall people have been getting taller and bigger. But again you have to define the population you are examaning. It could be that certain populations are getting smaller, which I've mostly seen linked to nutrition.
For example: a recent article I read on another board talked about how bust size in China is getting bigger among Chinese women because of better nutrition. This isn't necessarily an evolutionary response as it is a physiological response that is a result of our evolutionary pathway.
And with regards to loss of plant life (and you can broaden this to include an overall loss of biodiversity) you cannot ignore the effects man has had on his environments. Fact is we can destroy life more quickly than it can adapt to our actions.