4.28 billion years ago, the rich chemical brew brings forth the wonder of life, as the First Cell emerges. Probably around hydrothermal vents in the seafloor A tiny being which draws sustenance from the primordial soup, grows and divides, grows and divides. After some 100 million years of this first life, the supply of free chemical nutrients starts to run out as it has become tied up in the growing microbial population.