Subduction Zone
Veteran Member
Dang it!! I forgot my other possible source of amino acids. They have been found to form naturally from hydrothermal vents:No argument here!
Not only that but natural cell membranes form in the same environment:
In other words the first life did not need to make a cell membrane. The ability to make and maintain one likely evolved later. The first life could have merely relied on the natural vesicles that form from lipids around "black smokers".