Roomba: Hitting the Wall | The New Space Race | 3

17 Sep 2026 · 36 min · 12 chapters

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In short

The episode “Roomba: Hitting the Wall | The New Space Race | 3” argues that iRobot’s December 2025 bankruptcy (parent company of Roomba) reflects broader U.S. weaknesses in scaling manufacturing and protecting know-how, while China’s industrial strategy accelerates diffusion of tech.

Guest

Christopher Mims, a Wall Street Journal tech reporter and author of How to AI and Arriving Today.

Key claims

(1) iRobot wasn’t a “failure” because Roomba was the first successful mass-market robot; (2) security risk exists for internet-connected, camera-equipped home devices—data could be requisitioned by the Chinese government; (3) outsourcing manufacturing breaks feedback loops and gives manufacturers access to intellectual property, enabling cheaper copies; (4) the “new space race” is AI + robotics, with the U.S. and allies in a dead heat with China.

Notable examples

General Motors’ domestic EV battery R&D; Tesla’s U.S. DOE loans; UK autonomous sea drone component sending data to China; Aptronic (Austin) humanoid robot folding laundry with DeepMind; Moravec’s Paradox; Gemini’s “3–5 years” hardware scale gap; rare-earth extraction/refining dominated by China; sodium-ion batteries as a potential alternative.

Written by AI. May contain mistakes. Listen to the episode to check what was said.

Chapters

Tap a time to open that second in VO

The Rise and Fall of Roomba

0:45 to 1:56

Discussion on the success of Roombas and the subsequent bankruptcy of iRobot.

“The circular vacuums were a success story for their American inventors, bringing us one step closer to this scene on the Jetsons where robots do the work while we play.”

Interview with Christopher Mims

2:38 to 6:50

Christopher Mims discusses the implications of iRobot's bankruptcy.

“Joining us today, Christopher Mims, tech reporter at The Wall Street Journal.”

The Future of American Manufacturing

6:50 to 12:55

Exploration of America's ability to compete in technology and manufacturing.

“of manufacturing that object for you, they have direct access to all of your intellectual property.”

The Impact of Automation on Daily Life

14:01 to 14:59

Explore the potential dangers of automation on human life and jobs.

“Follow Against the Odds wherever you get your podcasts.”

The Race for Humanoid Robots

14:59 to 23:28

Discussing the competition to create versatile humanoid robots.

“Join Audible and the Audible app or by subscribing on Apple Podcasts.”

AI and Robotics as the New Space Race

23:28 to 28:00

Analysing the geopolitical competition in AI and robotics between the U.S. and China.

“You know, I'm really fascinated by the way that these large language models, the AI that so many of us are most familiar with, have rolled out in paid versions.”

The Journey of Running a Half Marathon

28:00 to 28:30

Explore the metaphor of running a half marathon and its implications.

“Thirty chapters later, you've accidentally run a half marathon.”

The Race for Rare Earth Elements

28:46 to 29:55

Understanding the significance and accessibility of rare earth elements.

“Christopher, robots and AI, I guess that's the finished product we're talking about there, but it takes elements to put this together, and I'm literally talking elements here.”

Innovations in Battery Technology

29:55 to 31:17

Discuss the potential of new battery technologies like sodium-ion.

“is working on building this infrastructure.”

Manufacturing Shifts in Robotics

31:17 to 33:18

Examine the changing landscape of robotics manufacturing and design.

“Well, they're still perfecting this technology, but there's serious money.”
Show all 12 chapters

AI's Role and Future in Society

33:18 to 36:59

Delve into the various applications and implications of AI technology.

“But they're largely manufactured there now.”

U.S. vs. China in Robotics

36:59 to 37:40

Assess the competitive landscape between U.S. and China in robotics.

“If you give people a way to cheat or to do something that's easier, even if it's ultimately not good for them or good for society, they're going to take it every time.”
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Transcript

Automatic transcript. May contain errors.

0:00David Brown:Hey, Business Wars fans, have you heard? Audible subscribers can listen to new episodes of Business Wars early and ad-free right now. Join Audible in the Audible app or by subscribing on Apple Podcasts.

0:16David Brown:From Audible Originals, I'm David Brown, and this is Business Wars.

0:39David Brown:In the early 2000s, Roombas began whirring around millions of U.S. homes, sucking up pet hair and Cheerios, among other things. The circular vacuums were a success story for their American inventors, bringing us one step closer to this scene on the Jetsons where robots do the work while we play. But the good times didn't last forever. iRobot, Roomba's parent company, declared bankruptcy in December of 2025, and Picea Robotics, its Chinese supplier, acquired iRobot. To some, that bankruptcy feels like more than just a business loss. It seems like yet another win for Chinese tech. In recent years, visitors to China have come back to the U.S.

1:20David Brown:shaking their heads, saying we've been out-manufactured, out-smarted, just plain outdone by the Chinese. Here to talk about all of this and a whole lot more, Christopher Mims, a tech reporter at the Wall Street Journal. He's the author of How to AI, Cut Through the Hype, Master the Basics, Transform Your Work, as well as another book, Arriving Today, From Factory to Front Door, Why Everything Has Changed About How and What We Buy. We're going to talk about innovation, AI, and robots. Lots of robots. All that is coming up.

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2:35What's in your wallet? Terms apply. See CapitalOne.com for details.

2:47David Brown:Joining us today, Christopher Mims, tech reporter at The Wall Street Journal. Christopher. So glad you could join us on Business Wars. It's a pleasure to be here. Long time listener. Well, thank you so much. And obviously, long time reader here. So what was your reaction to the news back in December that iRobot had declared bankruptcy? Was that sort of the end of an era for for you as you saw it or what? Yeah, it was a bummer. I mean, it was a iconic American company that had been in decline for a long time. It had seen layoffs and it ultimately felt like a classic tale of China kind of consuming an American company by copying what it did best and out competing it.

3:32But iRobot is not a failure because it made this completely genre-defining product, the Roomba. This was the first and really still for most people, the only successful mass market robot in history, right? Do you have any other robots in your house? I mean, does the dishwasher count? This really was singular and it felt like a little piece of the future was peeking into the present. You know, I've spent time with Colin Angle, you know, the founder of iRobot since then. And his next act, which he has told me was what he wanted to do all along, is a form of emotionally intelligent robot. So it's like a companion.

4:13It's funny that, you know, the guy who gave us the Roomba really always wanted to make a pet that would comfort us and keep us from feeling too lonely. What does it look like? It looks like a cross between a teddy bear and a dog. And this is just the first of many, they say.

4:30David Brown:Do you believe there are legitimate security concerns about the acquisition of iRobot by Picea Robotics? Is there anything that we need to be concerned about there? I do think that if you're going to have an internet connected device in your home that has some kind of camera on it, you might want to think twice about where it's sending that data. The bottom line is that if the Chinese government wants to requisition data from a company, It absolutely can. So that is always the concern with anything that is made in China and that connects to servers in China. The defense apparatus in the UK was recently embarrassed.

5:08They were building autonomous sea drones there and they found out that one component, just one component was sending data back to China. Now, it's unclear if that was just a cheap component that, you know, needed a little connectivity. So it was connecting to a server there to do some basic function. But, you know, are you sure that the cheap iRobot Roomba clone that you bought isn't doing the same thing?

5:28David Brown:So I guess I wonder what this means when we talk about like the U.S. losing its competitive advantage with, say, the Roomba. I mean, we have devices that have been designed in the U.S. You know, if you look on the back of an old iPod, you'll see designed in California. Right. And yet we all know that this wasn't made in California. It was made in China. And so what are we losing in effect when a company like iRobot disappears? One thing that we lose is a very particular kind of institutional knowledge, which only occurs when the designers and the engineers who are thinking up a device have direct access to the people manufacturing it.

6:12And there's a feedback loop between the people on the factory floor and the people who are designing that object. And if you want to see a positive example, you look at a company like General Motors. As they have moved into electric vehicles, obviously they're still doing their manufacturing domestically. They have their own battery lab. They keep coming up with new chemistries and kinds of batteries. There's a very tight loop between engineers and designers all the way down to the people manufacturing it, you know, with their hands, with the robots that do the manufacturing. And when you break that loop, when you outsource the manufacturing to China or elsewhere, and then a second thing happens, which is just as bad, which is that now the folks who are actually doing the hard work of manufacturing that object for you, they have direct access to all of your intellectual property.

7:05So they can just copy what you did and make a cheaper version of it.

7:09David Brown:I'm wondering, though, about whether or not we lost that intellectual property advantage a long time ago. I don't mean to go down too much of a rabbit hole with the iPhone, but it's such an iconic thing. But if you go to a place like Iran or Vietnam or someplace like that, you could buy a phone that for all intents and purposes looked every bit like a genuine iPhone and seemed to work the same way as well. I mean, how long has this been going on? Well, I think it's been going on since the dawn of the Industrial Revolution. I mean, it's easy to forget that the Industrial Revolution began in England and Americans were avid copiers of key early technology like automated looms.

7:54There's a real story about an American. Well, he became an American. He memorized the layout and the functioning of all the machines in an English mill. And in New England, he set up an identical copy of the mill. So people have been doing this to each other for centuries. And what's happened with China is that by outsourcing their manufacturing, every time an American or a non-Chinese company has a new product that people want to buy and they choose to manufacture it in China, they're also choosing to give up that intellectual property forever. and it doesn't matter whether their patent laws at play or not.

8:33I mean, a lot of times they're just not relevant because the laws are different in China and the government obviously has a different set of interests. So the game now is, as new things are invented, can they be manufactured domestically?

8:44David Brown:Well, let me put that question to you. Can they? I mean, do we have what it takes to build the next generation of whatever that next great thing is here in the United States, whether we're talking about a Roomba or we're talking about something that perhaps we haven't quite imagined just yet? That's unclear, but let me give you a slightly different answer. So you could manufacture critical components in countries that respect your intellectual property laws. America has fantastic relationships with countries like South Korea, where manufacturing can occur and you're not necessarily going to lose all of your intellectual property.

9:21And that can happen elsewhere. As for domestic manufacturing, we still have a viable automobile industry in the U.S. It is pivoting toward the future. I know people like to say, well, we're behind and it's hopeless, but trust me, Ford, General Motors, the auto manufacturers that count, Tesla still, Rivian, Slate, they are doing domestic manufacturing. And so if they can do that and we can continue to set up, you know, new plants to manufacture chips, which we're doing in the U.S. I mean, Micron is setting up in Syracuse a giant memory chip manufacturing plant. It can happen in the U.S. We do have the natural resources.

9:59We do have the human capital for now. It's a question of whether we are willing to, frankly, pay a little bit more for things that are manufactured domestically. I mean, you can also just create laws which force companies and force the federal government, for example, when they're doing defense procurement to only buy things that are manufactured in America. But at the end of the day, America cannot do it alone, right? So it will take an alliance of many countries that are harmonizing their laws in order to compete with China. China is just that big.

10:35David Brown:You know, I'm struck by what you were saying earlier about how this has been going on since really the dawn of the Industrial Revolution. And that's a really interesting point. But it reminds me that, you know, once upon a time in the not so distant past, it wasn't China that was eating our lunch. It was Japan that was eating our lunch. Remember? Remember, I'm wondering, though, with Japan losing its dominance in tech manufacturing to China, if there was a lesson we could have should have learned back then that we were unwilling to learn or maybe we we continue to overlook in all of these transitions, you know, in technology.

11:11I think one lesson that's important to learn is that diffusion of technology is inevitable and is desirable. The question is the rate of diffusion and what that does to your country's competitiveness. And so maybe one lesson I think we could have learned from what happened in Japan is how in a world where technology diffusion is happening, do you stay ahead? And the U.S. has always been really good at supporting fundamental research that leads to new breakthroughs. And we probably could do a much better job of creating a pipeline between new innovations and how do we scale that up into a big industry when it takes time for that to occur.

11:57And frankly, we have done it here and there. People forget that Tesla has become the size that it is now because it got huge multi-hundred million dollar loans from the U.S. Department of Energy, which wanted to support the manufacturer domestically of electric vehicles. Tesla would not be here today without that support. That's called industrial policy. China is great at it. Every five years, it says what it does on the tin. It's a five-year plan. And they say, here's what we're going to prioritize. here's what we're going to pour money into. And America and the West has been averse to doing that because we are the land of free enterprise.

12:35We don't want to meddle in markets. We don't want to necessarily pick national heroes. But China has definitively demonstrated that if you don't do that, you will not own the future of these big industries, which require many years of massive investment to get to a scale where you can then dominate the world with them.

12:55David Brown:We're going to talk a little bit more about what the U.S. can and can't do and about some other technologies that are right there on the horizon and what these changes add up to for us and for the rest of the world. We're talking with Wall Street Journal tech journalist Christopher Mims. Stay with us.

13:18Hey, it's Mike Corey, the host of Against the Odds from Audible Originals. In each episode, we share thrilling true stories of survival, putting you in the shoes of the people who live to tell the tale. And sometimes, we get to hear from survivors themselves, in their own words. On our next episode, Sujo John will tell his story of September 11, 2001. That day, he clocked into his job at the World Trade Center's North Tower. Sujo's wife, Mary, pregnant with their first child, worked just next door in the South Tower. Suddenly, an explosion rocked the building. collapsing cubicles and walls. But as Sujo and his office mates raced to escape the smoldering building, they heard another massive explosion, and Sujo realized his wife and unborn child were also in grave danger.

14:06Follow Against the Odds wherever you get your podcasts. Audible subscribers can binge all episodes of Against the Odds early and ad-free right now. Join Audible in the Audible app or by subscribing on Apple Podcasts.

14:18David Brown:In 1969, when police tried to shut down a gay bar in New York City's Greenwich Village, they expected little resistance. Instead, patrons rose up in a series of demonstrations that would ignite a movement. Hi, I'm Lindsey Graham, the host of the podcast American History Tellers. We take you to the events, times, and people that shaped America and Americans, our values, our struggles, and our dreams. In our latest series, the police raid on the Stonewall Inn marked a turning point in the fight for LGBTQ rights. But activists had already been hard at work pushing for gay rights for decades, and their battle is still being fought today.

14:55David Brown:Follow American History Tellers wherever you get your podcasts. Audible subscribers can binge all episodes of American History Tellers early and ad-free right now. Join Audible and the Audible app or by subscribing on Apple Podcasts.

15:16David Brown:Hey, welcome back to Business Wars. Our guest is Wall Street Journal tech journalist Christopher Mims. I don't know, Chris, you've probably seen that video of an autonomous Chinese robot running a half marathon faster than any human. What is it about the humanoid robot? Why does there seem to be this race to have a humanoid robot as opposed to, you know, something more like a hockey puck that basically gets the job done? Yeah, I mean, the idea here is the world is already made for humans. So if you want to automate what people do in the world that we have now, you need something that is roughly shaped like a human that has the same reach as a human.

15:55I mean, imagine you wanted a robot to take over grilling burgers at a fast food restaurant. Well, you could do it one of two ways. You could make a totally customized robot, just an arm with a flipper. And, you know, maybe it only works with one make and model of grill and it's not that flexible and it's expensive and has to be customized and it's only going to be sold to people who need burger flipping robots. And by the way, those kinds of burger flipping robots do exist and they do work pretty well. Now imagine instead, let's make a humanoid. Let's make it smart enough to adapt to all kinds of new situations.

16:29And so we can sell a hundred times as many of these robots because it can flip burgers hopefully in any restaurant in the world. And also, once it gets smart enough, you can ask it to go into the back and open up the freezer and get more burgers to flip. It has that flexibility, as they say. And that's one of the things that people like best about human workers, right? Imagine you're running like an Amazon warehouse. Part of the day, you're going to have somebody receiving goods in one end of the warehouse and taking them off of pallets and putting them into bins that get ingested into that warehouse.

17:02And then the next part of the day, they're taking things out of those bins and putting them into the boxes that get shipped to our house. That flexibility is really valuable. And that's what people are hoping for with a humanoid robot.

17:14David Brown:Well, maybe you can answer this question for me because I get what you're saying, that more flexibility ultimately means more sales. But it's funny. One of our producers was saying that the gold standard seems to be finding a humanoid robot that can fold laundry. Is there something about the act of folding laundry that's particularly difficult when it comes to humanoid robots? Robots love repetitive tasks. They love rigid surfaces. They love things that are predictable. And the average t-shirt is just this weird wobbly noodle of a thing. You got to think real hard about where to grab it. All this comes naturally to humans.

17:54It's part of our genius, really. And I think an underappreciated part of our genius. And for a robot, it is just the hardest task. You can train a robot how to take things out of a bin and put them into a box and seal that box up and ship it to somebody on an Amazon delivery truck. That's a solved problem at this point for the most part. But getting that same robot to pick up a shirt and fold it in a way that a person finds acceptable or to sort through a bin of laundry, it turns out to just be a really hard problem. Is anyone doing it well? One of the most convincing demonstrations I saw recently wasn't actually a Chinese company.

18:31There is a company based in Austin, Texas called Aptronic, and they have built what they hope will be the universal physical platform. They're trying to build the cheapest, best humanoid robot, but it's totally mindless. And that's what their CEO has told me. You know, we're just trying to make the best robot body we can. We're going to leave the brains to other people. Their partner is Google's DeepMind, which is Google's AI lab. And they have been working really hard on novel kinds of AI to drive robot bodies. And they very recently showed a video of one of Aptronic's humanoid robots picking up laundry, folding it in a naturalistic way.

19:10And this is the key thing. They say that this robot can go into almost any space, any old bin of laundry, and handle all the variability that comes from being in that novel place. that's what laundry folding robots haven't been able to do up to now. You could get a robot to fold laundry, but you'd have to train it really hard in the one environment.

19:30David Brown:So are you saying that the Aptronic robot, from what you can tell, can go beyond folding shirts and doing whatever is required in the laundry biz and do other things, well, let's just cut to the chase, that could put some folks out of work? Potentially. You know, for every breakthrough, we always run up against a new boundary. So maybe they've solved laundry. Does that mean they have solved making a meal? Because that's kind of an order of magnitude more complexity. I mean, I think about how hard it has been for me to train my teenagers to handle all the different tasks. I mean, there's knife skills.

20:09There's knowing exactly how much water to boil. It can take years to learn how to properly handle a fish or a piece of poultry or a mango. Just because this thing can do laundry doesn't mean that it can come along and take anybody else's job. But could it take over some repetitive tasks? And especially in places where there's a lot of repetition, warehouses, factories? Absolutely.

20:32David Brown:Yeah. In fact, I guess what you wouldn't need even to have the lights on and conceivably, right? I mean, you could have dark factories save on energy bills. Yeah, they call that the lights out factory. I mean, we're already pretty close for certain types of factories that do certain types of manufacturing. You say we're already pretty close. How close? Are we talking a couple of years out, maybe, you know, 2028, 2029, 2030? Are we talking about 2035 or beyond? That's a hard question to answer because it really depends on what you're trying to do. Like there are things in our built environment that truly haven't changed much in 50 or 100 years.

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21:13Like they're components of our - We take it for granted, in fact. We don't think about a lot of these. Yeah. Critical pieces of electrical grid, they've barely changed, you know, in 50 years. And can those be fully automated? You know, definitely. But famously, Elon Musk tried to fully automate the manufacturing of Teslas. It didn't work. He had to rip out a lot of those robots, bring people back. And he said publicly, humans are underrated. And I think part of the challenge there is every time you are trying to create something that's truly new, a drone, a new type of transportation, a new type of weapon, if it's the defense industry, you know, you got to go back to the drawing board and figure out sometimes from the start how much of that manufacturing process you can automate.

21:55So the limiting factor here is we just keep coming up with new stuff and we have to figure out new ways to make it, which means we've got to figure out new ways to automate its manufacturer. That really limits the utility of robots in general and it keeps people employed.

22:11David Brown:So it sounds like what you're describing is, you know, if we're talking about the future of robotics or robots, that chances are quite good that these are going to go hand in hand. These changes are going to go hand in hand with artificial intelligence. Am I right? Absolutely. I mean, there's this thing in robotics that's called Moravec's Paradox, and I always try to keep it in mind. And it's, you know, you imagine a robot playing chess, like a humanoid robot, maybe. Moravec's Paradox says it is easier to teach that machine to beat a human at chess than it is to teach that machine to pick up and move the pieces on a physical chessboard.

22:52and for 50, 100 years that's been true. I think we are going to a place now where new kinds of AI, I mean truly new kinds of AI, different than the models that power today's chatbots, are enabling new kinds of flexibility in the behavior of robots such that we can finally begin to animate robot bodies, whatever they look like, whether they look like a four-legged quadruped or a Roomba or a humanoid robot or a popular new one that I like is a centaur, literally. It's like a humanoid torso on top of a four-legged robot in ways that enable them to do things that just weren't possible before.

23:32David Brown:You know, I'm really fascinated by the way that these large language models, the AI that so many of us are most familiar with, have rolled out in paid versions. You know, you get a sort of a weak version that whets your appetite for a larger version that you have to pay for, and then you're sort of committed to ChatGPT or Gemini or whatever you've decided upon. But in China, they're sort of doing it in a slightly different way when it comes to AI. Have you noticed a difference in the rollouts there? Yeah, China does what are called open weights models, which means that you can download them and you can use them any way you want.

24:12Whereas, of course, in the US, you know, you got to pay for these services. And I think it's deliberate. I mean, these Chinese companies have recognized that, you know, maybe they can't compete head to head with these U.S. companies that have seemingly unlimited resources to spend on giant supercomputers to train their new models. So instead, they're taking the approach of, well, how can we work smarter, not harder? And how can we leverage the resources that we do have and share these AIs that we're creating with the world and maybe disrupt American companies in the process.

24:44David Brown:So how likely is it that China is going to be the country that we're concerned about, number one here in the U.S.? Right now, you know, when you see something like what's happened with Roomba happen, you know, that a Chinese company ends up owning the Roomba, how likely is it that China is going to be dominant in AI as well and will have that capacity to build out that next generation of humanoid robots. Is it not possible that some other country will eclipse China? Well, it's a pretty short list of countries that can compete with China. India, the U.S., and then that's it, right? Anything else is going to be a consortium of countries, right?

25:25The EU. I shouldn't equivocate about this. I think this is the new space race. I think that the U.S. and its allies are in a dead heat with China to own the future of AI and robotics. And it's really neck and neck. I mean, there are some amazing developments coming out of labs in China that are coming up with new ways to build AI models like the kind that OpenAI and Anthropic make, ChatGPT and Claude. Same thing with robots. You can't count the US and its allies out though, because there is still an incredible amount of innovation happening. we have this amazing dividend in the U.S. of for many, many decades, we were the place where smart people wanted to immigrate and start businesses.

26:13And if we completely close ourselves off and make it impossible for smart and skilled immigrants to come here and create new businesses and create new technologies, then we're sunk, right? I mean, it was a close call that we got to the moon first.

26:25David Brown:People forget that. Okay. Well, I guess what I'm trying to envision is if the moon landing was the apex or the climax of that space race, what is our moonshot here? If we're talking about this technological race with China as being a kind of an age-defining moment in technology, what's landing on the moon now? I think landing on the moon is the first time you walk into a workplace, a restaurant, an office, and there's a robot standing there. doing a job, and no one finds it remarkable? Well, you know, my wearable is giving me an alert here. I need to stand up, so maybe this is a good time to take a break.

27:11David Brown:When we come back, we're going to continue our conversation with Wall Street Journal tech journalist Christopher Mims.

27:23David Brown:Imagine you're reading Pride and Prejudice, except you're not reading it. Harris Dickinson and Marissa Abella are reading it to you on Audible. Her barbs sting you. His coldness sends a shiver up your spine. Your heart aches. Your ears burn. You yearn for Elizabeth and Mr. Darcy to profess their undying love for one another. You can't bear it any longer. Well, maybe a chapter longer. Performance is so good, you'll give love a second chance. Audible. Stories that speak to you. You stepped out for your morning jog. Except it's not your usual morning jog. You started listening to an epic sci-fi book on Audible.

28:01Thirty chapters later, you've accidentally run a half marathon. You lost track of how far you've run somewhere just past the city limits. You can't stop. You have to find out what happens next. Then it's over. The universe seems bigger. You feel different.

28:16David Brown:You feel like you have no idea where you are. Audible. Stories that speak to you.

28:31David Brown:Hey, welcome back to Business Wars. We're talking with Christopher Mims. He's a Wall Street Journal tech journalist, and he's been studying AI, robotics, and the intersectional nature of these two technological developments. Christopher, robots and AI, I guess that's the finished product we're talking about there, but it takes elements to put this together, and I'm literally talking elements here. What about access to the rare earth elements that we need to make these robots and magnets? And I wonder if we're talking about really a sort of old race, one of extraction. We absolutely are talking about an old race.

29:11You know, in the past couple of centuries, it's often been over things like oil. Now, people have said rare earths are the new oil in that way. The good news is it's a misnomer. Rare earths are not rare. They're pretty common. Earth's crust, the thing that China dominates is the extraction and the refining of rare Earths. So we have huge reserves. America is the Saudi Arabia of a lot of rare Earths. Wow. We haven't been mining them. We don't have the facilities to refine them to the point that, you know, when startups want to recycle things like the batteries in electric vehicles, they'll break them down.

29:48They'll send those elements back to China to get purified and refined into something that can then be remanufactured into a battery, which is crazy. The U.S. is working on building this infrastructure. And, you know, hopefully someday we'll get to a point where we really don't need to mine any more of them because we're recycling 100 % of them.

30:05David Brown:Is that really what we're talking about, recycling? Or are there other innovations that might make a race for these kind of minerals moot? Recycling is going to be a big part of it. Rare earths, you look at the periodic table, they can do things that other elements can't. That said, we could displace a lot of them by using things that are even more common. So, you know, my favorite example lately, we are building a lot of batteries to basically back up our grid to store energy when it's cheap and dispense it when we need it most or when it's cold or when the sun goes down and we don't have solar panels making power anymore.

30:41Right now, that industry is dominated by lithium-ion batteries, which to me is kind of crazy. We could use those lithium-ion batteries in our cars. And so instead, people are developing new technologies like sodium-ion batteries, and it's exactly what it sounds like. It's salt. And you can use that to create a grid battery, which we could eliminate a lot of the fossil fuels which power our grid now, and just use wind and solar and then store that energy in these giant sodium ion batteries and dispense it when the wind isn't blowing and the sun isn't shining.

31:14David Brown:That's fascinating. Is this technology that's already been developed and we're just sort of waiting to implement it or still a ways off? Well, they're still perfecting this technology, but there's serious money. There's serious engineers. General Motors is getting into the energy industry. So is Ford. I mean, they see that there's an opportunity here to take their manufacturing might and create custom batteries and manufacture those at scale here in the United States. You know, I've heard that places like Shenzhen are sort of ground zero for robotics and the future of robotics. Is that about right?

31:49In some ways, it's true because Shenzhen has become the Silicon Valley of China. It's where things are designed and pioneered. It's less true in terms of where things are made. I mean, China, wages have gone up there. And so places like Southeast Asia are sort of the China of China now. So lots of manufacturing has been shipped to Vietnam, to Thailand. And then you see companies like Apple trying to stand up as much manufacturing as they can in India. So one of the funny things when you go to Vietnam, where tons of electronics manufacturing is happening now, is that you walk around Ho Chi Minh City, it's obviously named for a famous communist, but it's surrounded by this very capitalist enterprise of all of these Chinese, South Koreans, some American companies doing their skilled manufacturing there.

32:39And so, you know, if you bought a smart fridge from Samsung, it's almost certainly manufactured there. If you bought a pair of AirPods, probably manufactured there. So it's amazing to walk around and see how vibrant it is and to see how it's a place where things are made and they're being shipped out to the rest of the world. And I've also spent time at the ocean-facing port there where giant container ships come and pick up, fresh from the factory, all of these electronics, which are then going to get shipped all around the world. And they might have been designed by Apple in California. They might have been designed by a Chinese company in Shenzhen or by a South Korean company.

33:19But they're largely manufactured there now.

33:21David Brown:Okay. Now, your latest book is called How to AI. And I know we've been talking about humanoid robots. But I'm wondering what other things should we be thinking about using AI for? Like AI could help us understand what a legal document is and that could further democratize, say, our ability to imagine new ways to make money. I'm just throwing this out there, you know. But I'm sure that you've thought about a lot of these ways that AI is going to transform our life that a lot of us haven't considered. Yeah, there are appropriate and inappropriate uses. I mean, am I a fan of Hollywood replacing concept artists and now visual effects artists with AI?

34:03No, I'm really not a fan of that. Am I a fan of it replacing writers like me? No, definitely not. Do I think it's amazing that people are using it to contest, you know, outrageous bills from hospitals and insurance companies? Yeah, big fan of that. Google DeepMind has shown recently that there are ways to enhance weather prediction using new kinds of AI. I mean, who wouldn't want better, more granular weather forecasts?

34:29David Brown:Amen. Let me ask you something. Do you consider yourself an AI optimist, a pessimist, a realist? How do you think about yourself in terms of what you see for the future of AI? I would definitely call myself an AI realist because, you know, the reason that something like the Odyssey still has resonance today is that people just don't change that much. And so we're repeating the same mistakes we've made with every other technology previously. We're overestimating its abilities. We're using it in inappropriate ways. We're overlooking the things that are actually going to be transformative about it.

35:02And more than anything else, we're just ignorant. I mean, anybody who tells you, oh, I think I know this is going to be the future of AI, they're all wrong. I guarantee you the future of AI is just weirder than anything any of us can imagine right now. And, you know, you only have to look at the history of any technology to understand why that's true.

35:21David Brown:I know that some students are going beyond what their parents even conceive. You know, when they think about AI, they're finding ways to get AI to tutor them. You know, they're not just cheating on their homework. They're actually learning how to solve problems for themselves. And I sometimes feel like in a way, the way that we think about AI is kind of limiting our imagination when it comes to the application of AI. I think that's true. I think also to give credit to people who have eyes in their head and are seeing what's going on. And I have a lot of friends who are educators. Let's be real.

35:57Mostly AI is just being used to cheat, to write essays for people. I mean, I have heard really disheartening stories from professors I know who've had to say to their students, these are college students. You know, don't even come to the last class of the semester if you haven't really been reading the material and you've just been turning in, you know, AI written essays. I just don't even want to see you there. And there's no point in you coming and trying to fake your way through a discussion. So mostly this is bad for education right now. And educators are really struggling with how do we make sure that students aren't just using this to cheat?

36:33Because it's understandable that they would. So I think that we could get there. This could be a way that really motivated students use this to teach themselves new things. I can use it that way sometimes, but we haven't yet figured out how to make it a net benefit for education, given that we just don't know how to keep students from using it to cheat. See, now you're sounding like a pessimist. That's why I call myself a realist, right? Human nature remains undefeated. If you give people a way to cheat or to do something that's easier, even if it's ultimately not good for them or good for society, they're going to take it every time.

37:09David Brown:Let me throw something else out there. This was an interesting thing that Credit Where Credit Is Due, our producer Polly Stryker took on. She asked Google a question. How long will it take United States robotics to catch up to Chinese robotics? And the Gemini AI overview said this, and I quote, The United States is not actually behind in foundational robotics software or AI brains, but it trails by three to five years in hardware manufacturing scale and commercial factory deployment. All right. This is sort of taking us back a bit to where we started, Christopher. Knowing what you know, does that explanation from Gemini AI sound about right to you?

37:50Yeah, I think that's dead on. I mean, one thing that AI is pretty good at is delivering a concise summary of what the consensus is on something. And I would say that's pretty much the consensus right now. Both China and the U.S. are good at scientific research, good at commercializing that stuff. They do it in very different ways, but it's people powered. So I think it really depends on who can maintain that economic engine of having enough smart, well-educated human beings to just keep this whole enterprise running. And it's not clear to me who's going to win that.

38:28David Brown:Christopher Mims reports on tech for The Wall Street Journal. Christopher, thanks so much for talking with us on Business Wars. Great to chat with you. Yeah, absolutely. This was a pleasure. Thanks for having me. Next time on Business Wars, the fantasy sports betting sites, FanDuel and DraftKings, they own the market. But that duopoly has put them directly in regulators' crosshairs.

38:53David Brown:Be sure to follow Business Wars on Audible or wherever you get your podcasts. And Audible subscribers can listen to new episodes of Business Wars one week early and ad-free right now. All you have to do is join Audible in the Audible app or by subscribing on Apple Podcasts.

39:18David Brown:From Audible Originals, this is the final episode of our series Roomba, hitting the wall for business wars. I'm your host, David Brown. Polly Stryker produced this episode. Our senior producers are Jenny Bloom and Emily Frost. Our producer is Tristan Donovan of Yellow Karen Lowe is our producer emeritus, engineered by Sergio Enriquez. Our managing producer is Desi Blaylock. Kyle Randall is our lead sound designer. Executive producer for Audible, Jenny Lauer Beckman. Head of creative development at Audible, Kate Naven. Head of Audible Originals North America, Marshall Lewin. Chief content officer, Rachel Giazza.

39:52David Brown:Copyright 2026 by Audible Originals, LLC. Sound recording copyright 2026 by Audible Originals, LLC.

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40:49David Brown:Audible subscribers can get all episodes early and ad-free right now. Join Audible in the Audible app or by subscribing on Apple Podcasts.

From the publisher

Recent visitors to China’s tech zone in Shenzhen have come away in awe of the country’s manufacturing capabilities, including its increasingly advanced humanoid robots. And when iRobot’s Chinese supplier took over the company this year, it looked like another win for Chinese tech. Christopher Mims is a tech reporter for the Wall Street Journal. He’s the author of “Arriving Today: From Factory to Front Door – Why Everything Has Changed About How and What We Buy.” He joins David to discuss robots, AI and what he calls “the new space race.”


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