BobRyan said:
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Actually it is the "contrast" between
A. Atheist claims of the form "rocks can do whatever they want when coming up with a horse over time"
I'm not aware of any atheists that claim this. It appears you're once again resorting to strawman claims.
Then read the posts and be informed.
============================
from the interview with Stanley Miller
Q: Some 4.6 billion years ago the planet was a lifeless rock, a billion years later it was teeming with early forms of life. Where is the dividing line between pre-biotic and biotic Earth and how is this determined?
Answer: (Stanley Miller) :" ... A
new discovery reported in the journal Nature indicates evidence for life some 300 million years before that. We presume there was life earlier, but t
here is no evidence beyond that point.
We really don't know what the Earth was like three or four billion years ago. So there are
all sorts of theories and speculations. The major uncertainty concerns what the atmosphere was like. This is major area of dispute. In early 1950's, Harold Urey suggested that the Earth had a reducing atmosphere, since all of the outer planets in our solar system- Jupiter, Saturn, Uranus and Neptune- have this kind of atmosphere. A reducing atmosphere contains methane, ammonia, hydrogen and water. The Earth is clearly special in this respect, in that it contains an oxygen atmosphere which is clearly of biological origin.
Although there is a dispute over the composition of the primitive atmosphere, we've shown that either you have a reducing atmosphere or you are not going to have the organic compounds required for life. If you don't make them on Earth, you have to bring them in on comets, meteorites or dust. Certainly some material did come from these sources.
In my opinion the amount from these sources would have been too small to effectively contribute to
the origin of life."
=============the
story with no "Special evolution fertilizer" to add to the "speculations" mentioned above.
(Miller)
“As long as you have those
basic chemicals and a reducing atmosphere, you have everything you need. People often say maybe some of the
special compounds came in from space,
but they never say which ones.
If you can make these chemicals in the conditions of cosmic dust or a meteorite, I presume you could also make them on the Earth. I think
the idea that you need some special unnamed compound from space is hard to support.
... I'm skeptical that you are going to get more than a few percent of organic compounds from comets and dust. It ultimately doesn't make much difference where it comes from. I happen to think prebiotic synthesis happened on the Earth, ...
There is
another part of the story. In 1969 a carbonaceous meteorite fell in Murchison Australia. It turned out the meteorite had high concentrations of amino acids, about
100 ppm, and they were the same kind of amino acids you get in
prebiotic experiments like mine. This discovery made it plausible that similar processes could have happened on primitive Earth, on an asteroid, or for that matter, anywhere else the proper conditions exist.