In the last episode of Mad Men’s first season (we’ve been rewatching it as a family, so it’s top of mind), Don Draper pitches Kodak on a name for their new slide projector. They want to call it the Wheel. He calls it the Carousel.
He clicks through his own family photographs — his wife laughing, his children small, a Christmas morning already ended. He tells the Kodak executives that in Greek, nostalgia means the pain from an old wound. The room is silent. Harry Crane walks out crying. The Kodak buyers cancel their next meeting and give Sterling Cooper the account.
That pitch is the high-water mark of an entire commercial era. Persuasion as poetry. A human in a room, a human across the table, an emotional bypass of rational comparison. Don wins because he makes another human feel something the competitor cannot produce.
Run it in 2030. The audience is a Kodak procurement agent. It parses the slideshow as a media file, summarizes the pitch in one sentence, checks the price against three competitors, verifies the supplier’s documentation, and routes the decision before Don’s second slide. The Carousel does not land. It cannot land. Nothing on the other side can feel.
This is commerce now.
Notice → search → read → compare → ask → narrow → choose → act. Eight steps. Eight industries — advertising, search, content, reviews, social, retail, point-of-sale, retention. Every one existed to proxy the only thing that ever mattered: the final decision.
AI collapses the eight steps into one. The intermediate work happens machine-to-machine, faster than human intervention, on infrastructure no brand controls. The decision we spent decades trying to influence now happens directly, without the layers entire industries were built upon.
The thing behind the thing was never an answer. It was a decision. We just couldn’t reach it before.
The premises
Four. Everything that follows rests on them. They hold.
AI is both channel and customer. The same system carrying your message is evaluating it. The machine mediating access to the buyer is deciding whether you belong in the option set. Audience and gatekeeper are now one piece of software.
AI will occupy nearly all of infospace. The internet was built for human eyes. As agents do more of the research, comparison, negotiation, and transaction on behalf of humans and institutions, the majority of activity inside infospace stops being people reading pages and becomes machines negotiating with machines.
These agents do not share incentives. Each inherits its owner’s objective function. A payer’s agent does not reason like a provider’s. A buyer’s procurement agent does not reason like a vendor’s. Some are adversarial by design. Decisions emerge from negotiation, not from any single ranking function.
Agents remember. Every outcome writes to the memory of every agent that watched. Today’s loss is not lost revenue alone. It is tomorrow’s evaluator armed with one more data point against you. Decision share compounds. Decision loss compounds faster.
If those hold, and they do, the commercial question stops being how to reach the human. It becomes how to persuade the persuaders, and how to deploy your own into the rooms you no longer enter.
The discipline
The work has a name. Decision Intervention Orchestration.
You do not orchestrate the audience. You field the orchestra. Your musicians are every asset you can deploy into the deliberation: how you appear, what evidence backs you, what your agents argue on your behalf, what your APIs promise, what your sources say when an evaluator checks. The audience is a marketplace of evaluators, each running a different objective function, each in continuous negotiation with the others.
Two kinds of influence sit inside the work.
Indirect. The evidence environment that shapes how every agent reasons about you in your absence. Structured facts. Verifiable claims. Machine-readable product data. Current sources. Third-party validation an evaluator can verify in milliseconds. Designed next steps. This is infrastructure. It runs whether you are watching or not.
Direct. Your own agents inside the negotiation. They represent your interests the way the agents on the other side represent theirs. They carry objectives, evidence, authority, escalation paths, constraints. They refuse bad deals, form provisional alliances, and send back the only signal you will get from rooms you can no longer enter.
Today most companies do neither well. Within a decade, doing both well is the job.
Share of decision
Share of voice worked when exposure was a thin layer that mostly predicted choice. The layer is no longer thin and no longer human. A product can enter the option set and still get negotiated out by agents, erased before the shortlist reaches a person.
The metric moves downstream. In the decision contexts that matter, how often are you accurately represented, fairly compared, and actionably selected? That is share of decision. It is the only metric that survives the collapse.
The unit is the decision context
Prompts are too volatile to organize work around. What persists is the decision context.
“Best CRM for a 200-person B2B SaaS company fleeing HubSpot.” “Treatment options after first-line failure.” “Cloud provider for a regulated financial services workload.” “Plan for a self-employed contractor with a family of four.”
These contexts exist before anyone types them. They survive model swaps and interface redesigns. They are the arenas where agents negotiate. Mapping them, and identifying which agents will mediate each one, is the opening move.
Healthcare is the proof case
The stakes in commerce are revenue. The stakes in healthcare are years of life. A wrong CRM choice costs money. A wrong treatment choice costs everything.
Healthcare is where the agent-mediated decision arrives first and bites hardest. Patients already ask AI what to do. Providers already consult AI on next steps. Payers already route approvals through AI. Each side fields agents. Each agent carries different incentives. The patient’s agent wants survival. The payer’s agent wants cost control. The provider’s agent wants outcomes inside workflow. The manufacturer’s agent wants its molecule represented accurately, balanced, in context.
If you cannot orchestrate your representation, evidence, and agents inside that environment, you do not lose share of voice. You lose the patient who was never told the option existed.
What is true at the extreme of healthcare is true everywhere else, in lower-stakes form. The discipline generalizes.
The terrain
The internet reorganized commerce around discoverability. SEO was the discipline that emerged.
AI is reorganizing commerce around decidability in agent-mediated negotiations. The discipline is DIO. The metric is share of decision. The unit is the decision context. The work is indirect through evidence and direct through deployed agents.
The Carousel still works. It just works on a vanishing audience. The persuasion that wins now is the kind that survives verification by a system that cannot feel. Evidence that checks out. Data that parses. Agents that argue your case in rooms you are not in. Representation that holds under adversarial scrutiny by other agents whose objective functions do not include your success.
SEO made you findable. GEO made you citable. DIO makes you decidable, in a world where the deciding happens mostly between machines that will never be moved by a slideshow of someone else’s family.
You win the decision environment or you lose the whole game. There is no third option. There is no second game.