Until you get down to the molecular level and examine the staggering complexity of a single cell.
Humans may one day understand enough about the chemistry of life to create lifeforms in the laboratory but that will not be the same as the long theorized life spontaneously emerging from an uncontrolled primordial soup.
How could a primordial soup in an uncontrolled setting have spontaneously produced living cells?
Yes, a billion years is a long time for a primordial soup to ferment but how in such soup did the inorganic ions of a cell (sodium, potassium, magnesium, calcium, phosphate, chloride, and bicarbonate) combine with the hundreds of thousands of low molecular weight organic precursors (amino acids, nucleotides, and simple sugars) to form the staggeringly complex carbohydrates, lipids, proteins, and nucleic acids which make up a single cell knowing how from day 1 to take in nutrients, process those nutrients, expel waste, reproduce and multiply?
