A recent mathematical analysis says that life as we know it is written into the laws of reality. DNA is built from a set of twenty amino acids - the first ten of those can create simple prebiotic life, and now it seems that those ten are thermodynamically destined to occur wherever they can.
For those unfamiliar with thermodynamics, it's the Big Brother of all energy equations and science itself. You can apply quantum mechanics at certain scales, and Newtonian mechanics work at the right speeds, but if Thermodynamics says something then everyone listens. An energy analysis by Professors Pudritz and Higgs of McMaster University shows that the first ten amino acids are likely to form at relatively low temperatures and pressures, and the calculated odds of formation match the concentrations of these life-chemicals found in meteorite samples.
link: "The DNA Code" - New Research Shows Life Hardwired in the Universe
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