The Man Who Hired Jony Ive Has a Warning for the Physical AI Boom

Robert Brunner founded Apple’s industrial design group, built Beats, and shaped the original PowerBook. He thinks the AI hardware industry is making the same mistake all over again — and the next great tech companies will be the ones people trust with their lives, not just their data.

By Arpy Dragffy · Founder, PH1 Research · Co-host, Product Impact Podcast April 9, 2026

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The 2026 race to put AI into a physical object is on, and the body count is already climbing.

Humane’s AI Pin — the most-hyped wearable launch of 2024 — was effectively dead by February 2025, when HP acquired its assets for $116 million after the company burned through more than $230 million in venture capital. Rabbit R1 is, by most accounts, on a similar trajectory. Meta quietly acquired Limitless in December 2025 and immediately stopped selling the Pendant to new customers. Meanwhile, OpenAI’s Chris Lehane confirmed at Davos in January that the company’s first device, designed in partnership with Jony Ive, is on track to ship in the second half of 2026 — a device OpenAI bought from Ive for $6.4 billion. Apple is preparing AI glasses, a camera pendant, and camera-embedded AirPods. Every major tech keynote at CES 2026 led with what the industry is now calling “physical AI.”

Almost nobody knows how to design for it.

The man best positioned to explain why showed up on the latest Product Impact Podcast episode, and what he said is more useful than anything that’s been written about the category this year.

Who is Robert Brunner

A short version of the résumé, because it matters: Robert Brunner founded Apple’s Industrial Design Group in 1989 and ran it until 1996. He hired Jony Ive (three times, by his own account, before Ive said yes). He led the design of the original PowerBook, whose keyboard-back, palm-rest pointing-device layout has remained the universal laptop configuration for 35 years. After Apple, he became a partner at Pentagram. In 2007 he founded Ammunition, the studio that designed Beats by Dre, the Square Stand, the Lyft Amp, the June Oven, the Polaroid Cube, and the Limitless Pin that Meta just bought.

Now, with co-founders, he is building Object — a startup focused on what physical AI should feel like when it’s designed to respect the user instead of extract from them.

When Brunner talks about how hardware should work, it is worth pausing the rest of the conversation and listening.

What he told us

Brunner’s central argument on the podcast is that the AI hardware industry is repeating the mistake the consumer software industry made fifteen years ago, but with a more dangerous payload.

“Modern technology is optimized for engagement, advertising, data extraction, time. In many ways, technology is, it’s like the matrix. It’s treating us as a source, as a resource. For information and not human well-being. And that’s one of the fundamental problems with digital technology. It’s been built around humans as a resource to be monetized. And I think we’re all sick of it.”

— Robert Brunner, Product Impact Podcast S02E06

The companies racing to put AI into wearables, pendants, glasses, and pins are, Brunner argues, building those products on top of the same incentive structures that made smartphones extractive. The hardware changes; the business model doesn’t. That’s the trap.

His framing of the alternative is the line worth tattooing on a product office wall:

“The most valuable currency in technology is rightfully becoming trust. The next great technology companies will be the ones people trust with their lives, not just their data.”

— Robert Brunner

He means this literally. As physical AI moves into devices that contain microphones, cameras, motion sensors, and access to an always-on data stream about how humans actually move through the world, the vendors that will win the next decade are not the ones with the best models. They are the ones whose customers genuinely believe the device is on their side.

Brunner’s test for whether AI in a product is real

This is the part of the conversation that should be compulsory reading for every product manager shipping an “AI-powered” anything in 2026.

Brunner offered a test for distinguishing genuine AI integration from AI-as-marketing-layer. It is short. It is brutal. It is the answer to a question every product team is being asked by their CEO right now.

“Does AI remove steps? Will the product require fewer actions to accomplish something meaningful — or more? If it adds menus and features and prompts and dashboards and all that stuff, it’s probably not good and it may just be marketing. But if AI quietly removes complexity and lets you do something faster, better, it’s real.”

— Robert Brunner

And then, the line that made me stop the recording:

“The best AI feature is the one you never notice. The problem simply disappears.”

This is the inverse of how every AI product release in 2026 has been marketed. Vendors are competing to show the AI — the chat overlay, the floating assistant, the “ask me anything” button, the badge in the corner of the interface. Brunner is saying that’s the tell. If you can see it, it isn’t working.

Compare this to what shipped with Humane’s AI Pin: a laser projector beaming a menu onto your palm, a wake-word interaction model, a visible badge on your chest that other people noticed before you did. The product made the AI as visible as possible. By Brunner’s standard, the design itself was the failure mode.

Why hardware is different from a chat interface

Brunner spent a long stretch of the conversation on something most coverage of AI hardware is missing: the relationship humans have with physical objects is fundamentally different from the relationship we have with software. He has been arguing this for thirty years. It is more relevant now than it has ever been.

“Human beings have this unique relationship with objects. In many ways we’ll use physical artifacts to define who we are — through the car we drive, the shoes we wear, the furniture we buy. People develop this emotional connection to things they can’t literally speak to, whether that’s a chair, a kitchen tool, whatever. That sort of goes back to the dawn of man — to when the first person who got up on two feet picked up a stick.”

— Robert Brunner

His point: when you put intelligence inside an object, you are not making the object smarter. You are inserting yourself into one of the deepest emotional relationships humans have with the made world. A chat interface is something you use. A wearable device is something you live with. The trust standard is dramatically higher, because the failure mode is so much more intimate.

This is the part of the analysis that the Humane and Rabbit failures keep teaching the market. Both products were technically functional. Both products had compelling demos. Both products lost their customers within months of shipping, and the postmortems keep finding the same root cause: users did not trust the device enough to live with it.

The Limitless example, in his own words

Brunner’s studio designed the Limitless Pin — the “memory augmentation” wearable that records audio throughout your day so an AI assistant can search and summarize it later. Meta acquired Limitless in December 2025. The pendant is no longer sold to new customers.

Brunner’s reflection on what went wrong is unusually direct for a designer talking about his own work:

“We chose to, instead of designing it to look like a piece of an iPhone or technology, we really designed it to be, feel more like a watch — a personal object — and came up with a really nice attachment system. But the fundamental challenge with the product, and essentially the product for those who don’t know about it, records audio. The fundamental issue is nobody wants to be recorded. Nobody. Even in meetings. And knowing that you’re being recorded — even though it’s got a little light that tells you that it’s on — you’re still like, okay, how is this information being used against me?”

— Robert Brunner

The form factor was right. The attachment was right. The model was right. The business was wrong because the product asked users to do something — let themselves be recorded all day — that no amount of design polish could make comfortable.

This is the diagnostic question Brunner is bringing to Object, the new startup he’s now building. It’s also the question every founder racing to ship a wearable in 2026 should answer before they tape out silicon.

The line OpenAI, Apple, and Meta should print and frame

Toward the end of the conversation, Brunner returned to the question of where AI will and won’t replace human contribution. His answer is the most succinct articulation I’ve heard of why the “AI replaces designers” thesis is structurally wrong:

“AI doesn’t feel. AI has never been hurt. AI has never felt joy. AI has never been through these experiences that shape you and define you. And those are the things that become these incredible assets — taste, insight, and judgment. Those are the things I think young designers need to spend more time developing, as opposed to learning how to do a specific tool or create amazing imagery. I don’t think those are things that will ever truly be replicated.”

And:

“Design can generate possibilities, but it can’t decide what matters.”

The product teams at OpenAI, Apple, Meta, and the dozens of physical AI startups currently raising rounds are about to discover this the hard way. The hardware will be impressive. The models will be impressive. The first generation will mostly fail anyway, because the people designing it will have optimized for what’s possible to demo instead of for what humans can actually live with.

The teams that survive the next 24 months will be the ones that take Brunner’s test seriously: does the AI make the product simpler, or does it make it noisier? Does the user notice it, or does the problem just disappear? Does the device respect the person, or does it extract from them?

The hardware boom is happening regardless of whether the industry takes that test seriously. Brunner’s bet, and the one his new company Object is being built around, is that the products that win 2027 will be the ones designed by people who already know the answer.

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Listen to the full conversation: Product Impact Podcast S02E06 — Robert Brunner on Physical AI

Hosted by: Brittany Hobbs and Arpy Dragffy

About Robert Brunner: Founder of Ammunition, founder of Object. Former Director of Industrial Design at Apple (1989–1996). Hired Jony Ive. Designed the original PowerBook. Led design of Beats by Dre, the June Oven, Square Stand, Polaroid Cube, Lyft Amp, and Limitless Pin. (Wikipedia)

About the author: Arpy Dragffy is founder of PH1 Research and co-host of the Product Impact Podcast.

Sources used in this analysis: - Product Impact Podcast S02E06 (April 2026) — primary source for Brunner quotes - Axios: OpenAI aims to debut first device in 2026 - TechCrunch: Meta acquires Limitless - TechRadar: With the Humane AI Pin now dead - Robert Brunner — Wikipedia - Ammunition Group