The marketing funnel had a sixty-year run. Awareness at the top, conversion at the bottom, and a comforting diagram in between that let everyone pretend buying behaviour was orderly. It is over. AI did not disrupt the funnel. It deleted it. And most health brands are still paying to maintain the plumbing.
Search stopped sending people anywhere
The bottom of the funnel was built on one assumption: when people are ready, they search, they click, they land on you. That assumption is collapsing in real time.
AI Overviews now answer the question on the results page. ChatGPT, Gemini and Perplexity answer it before a search engine is even opened. The majority of searches already end without a single click, and every model update pushes that number higher. There is no blue link to win anymore. There is an answer, and you are either in it or you are invisible.
Think about what that means for a decade of investment. You paid agencies to get you to position one. You bid on your own brand name. You built landing pages tuned to keywords. All of it optimized for a behaviour, the click, that is going away. Not softening. Going away.
Programmatic is machines selling to machines
Programmatic was sold as precision. What it actually became is an industrial waste system. The ANA's own supply chain transparency study found that a shocking share of programmatic spend flows to made-for-advertising sites, ad tech fees and fraud before a real human ever sees anything.
Now add generative AI to that supply chain. Slop sites are being published faster than any blocklist can grow. Synthetic pages, written by bots, visited by bots, serving your ads to bots, reported back to you as reach. The dashboard looks great. That is exactly the problem. The dashboard was always the product. Your customer was never in the room.
Health brands have pumped enormous budgets into this machinery because it felt accountable. Cost per click. Cost per acquisition. Numbers you could defend in a boardroom. But a precise measurement of a shrinking, polluted channel is not accountability. It is a very detailed receipt for waste.
The funnel was always a fiction. AI just turned the lights on.
Here is the uncomfortable truth performance marketing never wanted to face: people do not move through stages. At any given moment, roughly 95 percent of your category is not in market at all. Performance media never created demand. It harvested demand that was created somewhere else, by brand, by reputation, by memory.
Search and programmatic worked because there was demand to harvest and a click to capture it with. Remove the click, pollute the exchange, and the harvesting machine runs empty. What is left is the only thing that was ever really working: whether people think of you, trust you and prefer you before they ever type a word.
That has a name. It is called brand fame. And it is back at the centre of the profession, whether the media plan admits it or not.
Authority is the new algorithm
Here is the strategic twist most marketers have not internalized yet. When machines answer questions, they do not audition every option. They cite the brands the public record says matter. Large language models are trained on the accumulated consensus of what humans wrote, said, filmed and shared. Fame is literally the training data.
You cannot retarget your way into an answer engine. You cannot bid your way into a model's memory. The brands AI recommends are the brands culture already recommends. Which means the most measurable channel of the next decade, being the answer, is earned through the least "performance" activity imaginable: being genuinely famous and genuinely authoritative in your category.
Brand is the new SEO. Authority is the new algorithm. There is no shortcut, and that is precisely why it is defensible.
Health brands feel this first, and hardest
No category depends on trust the way health does. Nobody chooses a hospital, a therapy, a diagnostics brand or a care provider from a display banner. The real decision is made long before the search: from name recall, from reputation, from what a clinician mentions, from what a daughter remembers seeing when her father got his diagnosis.
Health is also where AI answers are advancing fastest. Patients are already asking chatbots what their symptoms mean and which providers to consider. If the model does not know you, the patient never will. In a regulated category where you cannot out-gimmick anyone at the point of conversion, your reputation upstream is the entire game.
The health brands still pouring the majority of budget into search and programmatic are optimizing the last metre of a journey that no longer routes through them.
Put the money where the humans are: film, OOH, the real world
So where does the budget go? To the channels AI cannot intermediate, cannot fake and cannot answer on your behalf.
Film first. Not thirty variants of a six-second cutdown, but real craft: cinema, premium CTV, work with an idea in it. Health is the most emotional category in existence. It deserves storytelling with actual gravity, because emotion is what builds the memory structures that make you the answer years later.
Out-of-home second. OOH is the one major channel growing while the others decline, and there is a reason. It cannot be blocked, skipped or spoofed by a bot. It is provably seen by real humans in the real world. And it carries a signal no digital impression can: confidence. A brand on a fifty-foot wall is making a public commitment. People read that, consciously or not, as trustworthiness. In health, that signal is worth more than any conversion pixel ever printed.
Around those two, build the rest of the fame system: sponsorship, experiential, PR, partnerships with clinicians and institutions, the kind of presence that generates the public record AI models learn from. Every one of these compounds. Every performance dollar evaporates the moment you stop spending it.
The choice in front of every health CMO
You can keep funding the bottom of a funnel that no longer exists, defending last-click numbers that measure less every quarter. Or you can accept what the data, the platforms and the culture are all telling you at once: distribution has moved to memory. Authority is the asset. Fame is the strategy.
The health brands that win the next decade will not be the ones that got found. They will be the ones that got remembered.
If your media plan still looks like it did in 2019, it is not a media plan. It is a museum exhibit. Let's talk about what replaces it.