So the evoluton of our solar system stopped when life appeared on Earth 4 billion years ago? Really?
Or is it that cosmic evolution has nothing to do with biological evolution?
*sigh*
I never said that "the evolution of our solar system stopped when life appeared on earth 4 billions years ago." "Really," I didn't. I said physicists generally
are not concerned with cosmic evolution after the "primordial soup." Moreover, I said that physicists treat biological and cosmic evolution as fundamentally different. Some physicists do concern themselves with biological: biophysicists, for example, may be very interested in terrestrial and cosmic evolution, and how they relate to each other.
And, I did not say "cosmic evolution has nothing to do with biological evolution." It should have been implied that I acknowledge some relationship between the two, seeing as though I said that physicists stop at the "primordial soup" point (for study.)
Then you should have real problems with embryonic development. A human baby starts out as one cell and develops into a mutlicellular, complex human being over just 9 months. If that can happen over 9 months without violating the laws of entropy, then why is it a problem if that process takes billions of years instead of 9 months?
No, I shouldn't. And, I don't. An embryo is already part of a complex biological organism that has genetic code programmed to conduct certain tasks (the mother.) The embryo itself is also a complex biological organism that contains genetic instruction that dictate its development - specific to certain conditions. Adding in a constant source of energy (eating, oxygen from the mother, blood, etc.) the miracle of life does not cause me problems with respect to entropy. The embryo already had the program to grow into a baby in nine months written into its genes. If an embryo randomly became a complex organism like a baby with no discernible "program" (i.e. genetics,) and without a constant source of energy feeding it, then that would be a problem.
With respect to biological evolution, the question of programming is troublesome. With the embryo example, we have the luxury of saying the body/organism already has the instruction manual (genetics.) For a large sphere full of cooling chemicals with extremely high entropy, how does one go that to organization with molecular and structural functionality? Also, the chirality of DNA and proteins poses a problem. Every amino acid in every protein in our body has the same left-handedness. Can amino acids form randomly? Of course. Can amino acids with 100% the same chirality form randomly? No, you will get a equal amount of its isomer.
Just as you would get looks of horrific disdain if you denied the existence of germs at a biomedical conference. The look of disdain is because of your willingness to ignore the facts.
Well, of course you would get disdainful looks denying the existence of germs at a biomedical conference, because it is "accepted" that germs exist today. If you
did not deny the existence of germs at a biomedical conference about 400 years ago, you would get the same disdainful looks. It isn't about willingness to ignore "facts," because are changed and amended with time. It is recognizing what is
accepted, and being humble enough to say that what you understand today may not be correct - it is just "accepted."