The Invisible Force Running Your Smart Home (And Why AI Might Be the Only Thing That Can Tame It)
What Is Electromagnetic Superintelligence and Why Should Homeowners Care?
I read something this week that genuinely broke my brain a little. In a good way.
It was a newsletter essay from Not Boring by Packy McCormick, co-written with Pratap Ranade, CEO of a company called Arena Physica. The subject was electromagnetism, and before your eyes glaze over, stay with me, because this one connects directly to your home, your neighborhood, and the way we're all going to live in the next decade.
Here's the short version: electromagnetism secretly runs the world, almost nobody actually understands it, and a company in New York is trying to build an AI that does.
Let me explain why that matters to you.
Everything Wireless Is Electromagnetic
Your GPS. Your WiFi. Your microwave. Your neighbor's Starlink dish. Your car's backup sensors. The contactless payment terminal at the coffee shop. Every single one of these things works because of electromagnetic (EM) waves which are all invisible forces that move through the air, bounce off walls, and carry information, energy, and signal.
As Ranade put it in the essay: electrical and electromagnetic components are the "nervous system" of modern hardware, and they contribute to 40–50% of hardware failures. We rely on this stuff constantly, and most of us, including most engineers, can't actually see or intuit how it works.
That's not a knock on anyone. It's just biology. We evolved to understand gravity (drop a glass, it falls) and we evolved to see visible light. But the rest of the electromagnetic spectrum such as radio waves, microwaves, infrared, the signals bouncing around your living room right now are all completely invisible to us. There was never any evolutionary pressure to sense it.
Why This Matters for Your Home Right Now
Here's where it gets relevant for anyone buying, selling, or living in a home in 2026.
The electrification of everything is accelerating. What used to be mechanical like your car engine, your furnace, your stove, is going electric. And electric means electromagnetic.
Think about what a modern home contains that didn't exist 15 years ago:
EV chargers drawing serious amperage in the garage
Smart thermostats, locks, doorbells, and speakers all communicating wirelessly
Solar panels and battery storage systems with inverters converting DC to AC
Mesh WiFi systems with multiple nodes broadcasting through every wall
Smart appliances — washers, fridges, ovens — all talking to your network
Each of these things creates, emits, receives, or is affected by electromagnetic fields. And increasingly, the way these systems perform depends on how well their components are designed to shape and direct those fields.
The essay cites a striking stat: in 1970, electronics made up about 5% of a new car's cost. By 2020 it was 40%. By 2030, it's expected to hit 50%. Your home is on a similar trajectory.
The Problem: EM Design Is Basically Black Magic
Here's the fascinating, and humbling, part of what Ranade explains.
Designing electromagnetic hardware is extraordinarily hard. RF (radiofrequency) engineering, the practice of shaping and directing EM waves, is sometimes called "black magic" even by the engineers who do it. The reason is that at certain frequencies, everything interacts with everything. The shape of a wire changes the field it produces. The metal casing around a chip affects how signals travel. The screws holding a circuit board together can interfere with a radar signal.
There are maybe a few hundred people in the world who have developed a genuine intuition for this. People who, after decades of study and testing, can look at a design and sense how the fields will behave which is the same way a master carpenter can eyeball whether a joint will hold.
The rest of us are flying blind. And that bottleneck is a tiny pool of rare experts and slow, expensive simulation software that is one of the hidden constraints on how fast we can build better wireless systems, better EVs, better medical devices, better everything.
Enter the Large Field Model
Arena Physica's big bet is that AI can develop the intuition humans never evolved to have.
They're building what they call a Large Field Model (LFM). Think of it like the electromagnetic equivalent of a large language model (LLM). Where ChatGPT or Claude learned the patterns of human language by training on enormous amounts of text, an LFM learns the patterns of electromagnetic physics by training on enormous amounts of simulation data.
The goal: show the model enough examples of "this shape produces this field pattern," and it learns to predict new patterns for new shapes almost instantly which is cutting simulation time from hours down to milliseconds. That's an 18,000x speedup, according to their internal testing.
Why does speed matter so much? Because designing EM hardware is basically a search problem. You need to find the right shape and the right geometry of copper and silicon. That shape will produce the exact field behavior you want. The search space is almost incomprehensibly large. A simple two-layer grid component has more possible configurations than atoms in the observable universe. You can't brute-force your way through that. You need intuition to know where to look.
And that's exactly what the LFM is being trained to provide.
The AlphaGo Analogy
The essay uses a comparison I found genuinely clarifying: AlphaGo.
In 2016, DeepMind's AlphaGo defeated one of the world's greatest Go players. The move that stunned everyone was Move 37 in Game 2 which was so unconventional that expert commentators initially called it a mistake. Then they called it strange. Then they called it beautiful.
AlphaGo had found a strategy that humans, despite thousands of years of playing the game, had never discovered. Not because it was smarter than humans in a general sense, but because it had played more games of Go in simulation than all humans in history combined.
Arena Physica is trying to do the same thing for electromagnetic design. Their AI generates designs that look nothing like what a human engineer would produce make shapes that come out looking like QR codes or random noise. Expert RF engineers see them and say "that doesn't look like an antenna." Then they test it. And it works. Sometimes it works better than anything a human would have designed.
That's the Move 37 moment for physics.
What This Means for the Future of Homes and Neighborhoods
I'm a Realtor, not a physicist. But I think about what this means for the built environment, and it's significant.
The bottleneck in deploying better smart home technology, cheaper EV infrastructure, and more capable wireless systems isn't just money or will. It's the scarcity of people who can design the electromagnetic components those systems depend on. Arena Physica's vision is to make that expertise abundant and affordable, the way Amazon Web Services made server infrastructure abundant and affordable.
If they're right, here's what could follow:
Smarter, cheaper EV infrastructure. The charging systems and wireless communication components in EV networks all depend on carefully designed EM hardware. If design becomes faster and cheaper, so does deployment.
Better-performing smart homes. Mesh networks, smart devices, and home automation systems that currently suffer from interference, dead zones, and connectivity problems are fundamentally EM design problems. Better tools mean better products.
Neighborhoods built for the electromagnetic age. Right now, the EM performance of a home or development is basically an afterthought. In a future where this technology matures, it may become a feature in the same way energy efficiency ratings are now.
The Bigger Picture
What struck me most about this essay wasn't the technology. It was the underlying idea: we've built an entire civilization on a force we can barely see, designed by a vanishingly small number of people who have spent their careers learning to think like electrons.
That's both remarkable and a little precarious. And it's why I find what Arena Physica is doing genuinely exciting and not just as a tech story, but as an infrastructure story, a housing story, and honestly just as a reminder of how much invisible complexity is holding the modern world together.
If you want to go deeper, I'd recommend reading the full Not Boring essay. It's long, it's dense in spots, and it's worth every minute.
Joy Watson, Realtor® | Joy Watson Real EstateServing Greensboro, NC & the Piedmont Triad(928) 699-8883 | joy@joywatsonrealestate.comLicense #307423 | Firm License #C37131Equal Housing Opportunity 🏠
