The essay
Every time an uninsurable technology became insurable, insurers didn't wait for the state to make it safe. They built the proof themselves, and priced the difference. That pattern has a shape, and AI meets its conditions.
The recurring pattern
Steam power, electricity, industrial fire, and the automobile each arrived as a technology too dangerous to price. In each case the market that eventually formed was not conjured by a regulator. It was built by insurers who made a control and a record the precondition of cover, and then competed on how well they could measure the risk they had just made legible.
Hartford Steam Boiler put a sealed valve below the operator and a certificate on the machine. Underwriters Laboratories turned electrical safety into a mark a carrier could rely on. The factory mutuals rebuilt fire underwriting around inspection and prevention, keeping the surplus that prevention earned. The Insurance Institute for Highway Safety made crash performance a measured, published number the whole market could rate on. Different centuries, one move.
The four conditions
A prevention mechanism the insured party cannot quietly disable. The valve, the fuse, the sprinkler, the crumple zone.
Per-unit evidence a third party can inspect, attached to the thing itself, not asserted by its owner.
The rule that made every market: no inspection, no coverage. The policy, not the state, mandates the mechanism.
A stream of measured outcomes that lets questionnaire underwriting give way to pricing on evidence.
The test for AI
The control below the operator exists: enforcement beneath the software trust boundary, a valve the model cannot prompt away. The record that travels exists: a per-action attestation token bound to a signed rule version. The coverage boundary is a design choice a carrier can make tomorrow: attested actions inside cover, everything routed around the valve outside it.
Only the fourth condition, accrued loss experience, is still forming, and it is forming exclusion-first, exactly as cyber did. What is different is the clock. AI losses are faster and more correlated than the perils that took fifteen years to price, and per-decision logging is now a regulatory obligation, not a nice-to-have. The substrate the fourth condition needs is being poured now.
The market, forming
On 2026 reporting, absolute AI exclusions have appeared across D&O, E&O and cyber; standalone AI liability has launched with modest limits; a Lloyd's-backed AI MGA is underwriting. And Hartford Steam Boiler, the company that started the whole pattern, still operates inside Munich Re and is publicly working this exact market today.
The coverage-boundary mechanism is the through-line from 1866 to now: the modern form of no inspection, no coverage is a coverage boundary drawn at the governance boundary. Nobody mandates the appliance. The policy does.
The horizon
The factory mutuals kept the surplus that prevention earned, because the party that prevents the loss should hold the value it creates. A prevention-led book of governed AI, over time, permits the same structure, a mutual owned by the parties whose risk it lowers. That is a possibility the architecture permits, not a plan this page announces. The immediate work is narrower and more honest: a first warranty, co-designed with a carrier, on the action classes that already carry proof.
Triodian Pty Ltd is not an insurer, does not hold an Australian Financial Services Licence, and does not issue, arrange, or advise on insurance products. The pages in this section describe technical infrastructure and invite partnership discussions with licensed carriers, reinsurers and underwriting agencies.