Abiogenesis is impossible

[snowtracks]

so, i put this out there - "one problem for undirected spontaneous interactions from a prebiotic compound is that the dna complimentary 2 strands that form the double helix construction cannot bind with each other unless all the building blocks (nucleotides) are of the same handedness (here, all 19 are left handed). nature and lab experiments have shown nonbiological processes produce molecules in essentially 50% (even distribution of right, left) which corresponds to randomness, whereas encoded information (building instructions) directs handedness from the get-go." - knowing that the evolution microbiologists have given up explaining it; but still, i thought someone on this board would tell how it's done by unidirectional processes. again, two need to be explained: double helix design and construction, and the 19 nucleotides all being one-handed (whereas experimentally it comes up randomly around 50%.).

http://www.talkorigins.org/indexcc/CB/CB040.html
Amino acids found in meteorites from space, which must have formed abiotically, also show significantly more of the left-handed variety, perhaps from circularly polarized UV light in the early solar system (Engel and Macko 1997; Cronin and Pizzarello 1999). The weak nuclear force, responsible for beta decay, produces only electrons with left-handed spin, and chemicals exposed to these electrons are far more likely to form left-handed crystals (Service 1999). Such mechanisms might also have been responsible for the prevalence of left-handed amino acids on earth.

credit is due where it's found, poster put some science out there.

"Amino acids found in meteorites from space",
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organic chemist w. bonner said he spent 25 years looking for a terrestrial mechanism for homochirality (one handedness) and didn't find in supporting evidence. so concluded that the source must be extraterrestrial.

"perhaps from circularly polarized UV light in the early solar system"
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using 100% circularly polarized uv light, the most successful lab expers. yielded only 20% excess lefthanded.
but this results was achieve not by production but by destruction. the uv light destroyed a large fraction of the amino acid, and depending on the directional rotation of the circular polarization, one configuration of the molecules suffered significantly more destruction than the other.

so the hunt has moved to extraterrestrial for a solution. so the appeal goes out to future again.