Natural commons are the physical counterpart to the commons built for machine intelligence. The sea, the wet beach, and a public walking strip above the tide line belong to no one. Title to the land behind them is not title to them.
A resort may charge for its pool, its chairs, and its rooms, but not for walking onto the beach. Where private land runs along a coast, a lake, or a ridge, public paths cross it at set intervals, paid for at fair value. Fencing a natural commons, or charging to reach it, is manufactured scarcity. See who holds what is scarce.
No government owns them either: it licenses or protects them on the public’s behalf.