Going from inorganic molecules to organic alone is a giant step, and the Earth started as inorganic. > > I am a little confused as to what you mean by going from inorganic to organic since, in chemistry terms, organic just means that carbon is involved? It smacks of vitalism, but perhaps I misunderstand you.-I meant exactly what I stated. Inorganic chemical reactions are child's play compared to organic reactions. It is much more than carbon is the key atom. It involved heat, enzymes, both metallic and organic. The molecules of life are huge and highly organized, To understand you would literally need some study of biochemistry.