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ArtistClose-up image of several continual perfusion proto-cells forming as atmospheric- and geo-chemicals combine to constitute a Belousov Zhabotinsky reaction in one of millions of diverse semi-isolated pools filling pores in the rocky surface of the prebiotic planet earth. Within the pool Miller Urey amino acids are concentrated, aligned and polymerise on the surface of adjacent montmorillonite microplates, detaching to incompletely or loosely enclose tiny volumes of the pool. Coupled to reaction wavefronts inside the proto-cell, mechanical contractions move across the proto-cell membrane, driving an internal current that tends to circulate the external Belousov Zhabotinsky pool through the proto-cell.