Life & Consciousness

Hydrothermal Vent (Metabolism-First) Origin

alternative Contemporary 1988 (Wächtershäuser); vent version 2000s

Suggests life began not in a surface “soup” but at alkaline hydrothermal vents on the ocean floor, where mineral structures provided ready-made chemical gradients for early metabolism.

Proponents

Günter Wächtershäuser, Michael Russell, William Martin, Nick Lane

Evidence For

Alkaline vents naturally generate proton gradients resembling those all living cells still use for energy, and provide catalytic mineral surfaces.

Evidence Against

Direct evidence that the first self-replicating systems actually formed at vents (rather than elsewhere) is circumstantial.

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