Thermodynamically destined to exist.
From the article
There are exactly 20 standard amino acids — complex molecules that combine to form proteins, which carry out instructions specified by RNA and DNA, its double-stranded and self-replicating descendant.
Ten were synthesized in the famous 1953 Miller-Urey experiments, which modeled conditions believed to exist in Earth's early atmosphere and volcano-heated pools. Those 10 amino acids have also been found in meteorites, prompting debate over their role in sparking life on Earth and, perhaps, elsewhere.
Pudritz's analysis, co-authored with McMaster University biophysicist Paul Higgs and published Monday on arXiv, doesn't settle the former debate, but it does suggest that basic amino acids are even more common than thought, requiring little more than a relatively warm meteorite of sufficient size to form. And that's just the start.
If the observed patterns of amino acid formation — simple acids require low levels of energy to coalesce, and complex acids need more energy — indeed follow thermodynamic laws, then the basic narrative of life's emergence could be universal.
"Thermodynamics is fundamental," said Pudritz. "It must hold through all points of the universe. If you can show there are certain frequencies that fall in a natural way like this, there is an implied universality. It has to be tested, but it seems to make a lot of sense."
Forget Jesus, the stars died so that you could be here
- Lawrence Krauss