I spent the better part of last autumn crouched in a Douglas-fir stand forty miles north of Corvallis, watching a team of mycologists thread fiber-optic probes into the duff. They were not looking for truffles. They were tracing an information network — one woven from hyphal threads thinner than a human hair, stretching across three square miles of forest floor, connecting the root systems of over two hundred trees into a single, continuous conversation.
The network had been running, uninterrupted, since before the first dinosaurs. Every tree in that stand was part of a distributed ledger: carbon credits traded for phosphorus, distress signals relayed across species lines, chemical warnings about bark-beetle incursions passing from fir to cedar to hemlock in under an hour. No central router. No packet loss. No DDoS vulnerability.