evolution says nothing about upwards. evolution is directionless. it simply happens to have resulted in the current. evolution is the recognized pattern of what has and has not died and what the 'has not died's' have produced.
if a fish hatches without fins, he can't swim and he dies. thus, his genetic line is cut and he produces no offspring. if a fish hatches and happens to have study, thick fins that can support his body, he might be able to move on land and in the water and find more food. thus, he might live and reproduce and then he might pass his stronger fins to his children.
evolution is the pattern of those mights; it is not a biological law of the ever-improving biome.
i'm not so big on physics. you should read this.
http://www.talkorigins.org/faqs/thermo/probability.html
but. in nature, the sun gives energy to the earth. plants absorb something like 1/10th of that energy. animals that eat plants only absorb 10% of the energy of plants. animals that eat animals only recieve 10% of the energy that those animals had. and so forth. there's plenty of loss in our system to make up for any reorder.
This message has been edited by brennakimi, 01-24-2006 12:18 AM