The Earth formed more than 4 billion years ago along with the other planets in our solar system. The early Earth had no ozone layer and was probably very hot. The early Earth also had no free oxygen. Without an oxygen atmosphere, very few things could live on the early Earth.
How did life start on Earth? Not randomly. Even after decades of trying, many scientists still cling to the hope that a naturalistic explanation for the origin of life will be found by science. It’s a fool’s errand, yet they press on. The search goes on to find possible life-starting pathways of prebiotic synthesis of certain organic substances of biologic interest, such as purines and pyrimidines, or polypeptides.
Abiotic synthesis means making compounds using non-living molecules. It’s possible that organic molecules formed before life began and built up to make the first cells. It’s also possible that the tooth fairy is real. A wide variety of experiments were designed to simulate conditions on the primitive Earth and demonstrate how the organic compounds that made up the first living organisms were synthesized. All of these experiments have been dead ends.
Prebiotic chemistry is studying how organic compounds are formed and self-organized for the origin of life on Earth. The source of energy cannot be discovered in the lab.
There have been so many unsuccessful attempts to produce prebiotic organic compounds with CO2+N2+H2O mixtures (in the absence of hydrogen). The possibility of obtaining laboratory simulations of chemical events that occurred on the primitive Earth is zero. Yet, science continues to try. Science is not closer to a solution today than it was thirty years ago. Science can’t find the genetic origin, i.e., biologically relevant information in biopolymers, can’t be overcome. There is a fundamental flaw in all current theories of the chemical origins of life. End of story. The chances of a primordial. Pre-biotic soup that produces a living cell is a fairytale
.Filters. Any plausible pathway by which the molecular precursors of life (amino acids, bases, and ribose phosphates) may have been formed in the early Earth.
The idea of the prebiotic Earth as a roiling organic soup with a highly reduced atmosphere of H2, H2O, methane (CH4), and ammonia (NH3). NH3 was shown to have a very short lifetime in the atmosphere of the early Earth due to photodissociation. All of this leads to zero life formation, deal with it.
