Every article in the Innovation Wormhole series stands on its own — no prior reading is required. For context: Part 1 introduced the Innovation Wormhole — the idea that AI should transfer proven mechanisms between industries instead of reinventing them. Later articles defined the protocol (cards, scores, evidence gates), the measurement discipline (calibration against realized outcomes), and the reference architecture (the Transfer Stack). This closing piece is the validation one.

Every technical series faces the same test in its final installment: did any of this survive contact with reality?

This article answers that question honestly, in two parts. First, a retrospective case study — a backtest that replays documented, historical cross-domain transfers through the Transfer Stack and checks whether the protocol's scoring logic would have said the right things.…