In a previous blog, I mentioned the fact that meteoritic amino acids are undoubtedly a signature of extraterrestrial life and not abiotic, because they are all chiral. However, they are all L-amino (none are D-amino), which is unexpected from the hypothesis of independent spontaneous generation for each event, which should randomly select between L- and D-. There are three possibilities:
(1) we hit the lottery with a one-in-a-million chance of never having seen a common D-amino;
(2a) there’s a “Darwin-of-the-gaps” materialist explanation for the prevalence of L-amino life;
(2b) another “Darwin-of-the-gaps” materialist explanation for abiotic formation of L-amino life;
(3) all these meteorites are actually infected from the same source of life.
Now (1) offends my mathematical sense as it should yours, and (2a) and (2b) require too much faith in materialism for my skeptical mind, but (3) matches everything we know about the ubiquity of life on Earth. That is, despite our best efforts at sterilization, hospitals get infected with superbugs. Likewise, extremophiles grow from -30C Mt Everest to 400C black smokers on the sea floor, even in mines miles deep, along with every square inch of our planet’s surface. So am I surprised that these meteorites, widely believed to be extinct comets, are all infected by the same sort of life? Not a bit.