Nov 19, 2025 · 1h 16m · a16z
Ben Horowitz & Marc Andreessen: Why Silicon Valley Turned Against Defense (And How We're Fixing It)
Katherine Boyle · 21m spoken Marc Andreessen · 21m spoken David Ulevitch · 15m spoken Ben Horowitz · 7m spoken
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gold bands on the timeline = statements, start to end. Hover to read, click to jump. CC turns on captions
In this episode of 'The Ben & Marc Show,' Andreessen Horowitz partners Ben Horowitz, Marc Andreessen, Katherine Boyle, and David Ulevitch explore the origins, strategy, and national imperative behind their 'American Dynamism' practice. They discuss repairing Silicon Valley's historical rift with national defense and funding innovation across key sectors like energy, aerospace, critical supply chains, and advanced manufacturing.
How this conversation actually went
Every chapter scored 0–10 on four independent dynamics. Hover any point for the reasoning behind the score. How this is scored →
The host as informed peer 3.1 Guest teaching 4.9 Guest disagreement 1.2 The host pushing back 0.1
speaking balance: gold is the host, purple is the guest (3 minute bins)
Sharpest disagreement ▶ 1:05:21 Ben Horowitz attacks central planning ideology
Ben forcefully rejects state-directed planning arguments, calling the desire for central control a weird psychological defect and recommending shorting any company with a five-year plan.
Hardest push from the host ▶ 17:19 Host challenges Silicon Valley's historical stance on defenseSteph Smith brings up Paul Graham's public critique of Palantir and ICE alongside Palmer Luckey's exit from Meta to directly confront guests with the recent anti-defense tech sentiment.
Biggest teaching moment ▶ 1:03:18 Marc Andreessen traces five-year plans to Joseph StalinMarc educates the host and audience on the Soviet origins of corporate five-year plans, explaining how mid-century US economics textbooks falsely taught that central planning was economically superior to dynamic capitalism.
The host holds their own ▶ 34:52 Host connects Apple's China talent spillover to SpaceX alumniSteph Smith demonstrates notable domain expertise by linking an earlier podcast analysis of Apple building China's workforce to how SpaceX and Anduril are training founders to rebuild US defense manufacturing.
the scores for every segment, with the reasoning behind each
| Chapter | Topic | The host as informed peer | Guest teaching | Guest disagreement | The host pushing back | Why |
|---|---|---|---|---|---|---|
| Origin Story of the American Dynamism Practice | 2 | 5 | 1 | 0 | Host asks an open introductory question about the origin of the American Dynamism fund. Marc and Ben explain early Silicon Valley history and Netscape's Pentagon contracts without any pushback from the host. | |
| The Project Maven Turning Point and Moral Shifts | 0 | 4 | 2 | 0 | Ben and Marc detail the Google Project Maven controversy as a pivotal moment of cultural revolt against government contracts. The host does not speak during this segment. | |
| Philosophical Rifts and Post-Vietnam Anti-Military Culture | 1 | 5 | 2 | 0 | Host prompts the guests to explain why anti-defense hostility developed in tech. Marc cites post-Vietnam anti-war culture, Stanford R&D divestment, and post-Iraq cynicism. | |
| Cultural Disconnects: D.C. Metro vs. Harvard Dorm Rooms | 5 | 4 | 4 | 1 | Host cites Paul Graham's critique of Palantir and ICE alongside Palmer Luckey's departure from Meta to highlight shifting Silicon Valley norms. Marc forcefully dismisses anti-ICE tech protests as thinly substantive and purely emotional. | |
| How David Ulevitch and Katherine Boyle Joined Forces | 1 | 2 | 1 | 0 | Host prompts David and Katherine to tell their origin story of partnering on the fund. David and Katherine share lighthearted anecdotes about competing over the Anduril and Flock Safety deals. | |
| Hardware Investment Strategy and Advanced Software Pairing | 3 | 5 | 1 | 0 | Host asks how investors should evaluate hardware companies given standard capital-intensity critiques. David educates on pairing off-the-shelf commodity hardware with advanced software and explains defense sales cycles. | |
| Energy Requirements for AI Compute and Grid Resilience | 3 | 5 | 0 | 0 | Host guides the conversation into energy requirements for AI compute and aerospace bets. David and Katherine detail base-load grid demands and the unbundling of satellite manufacturing. | |
| Defense Procurement Reform and SpaceX/Anduril Alumni | 6 | 4 | 0 | 0 | Host demonstrates deep knowledge by drawing a parallel between Apple building China's manufacturing talent pool and SpaceX/Anduril alumni rebuilding US defense capability. Katherine agrees and elaborates on Elon Musk's manufacturing school. | |
| Lessons from Ukraine: Attritable Systems vs. Legacy Platforms | 3 | 5 | 1 | 0 | Host asks what broke the defense incumbents' monopoly. Katherine and David explain how the war in Ukraine demonstrated the superiority of attritable mass over exquisite legacy platforms. | |
| Expanding American Dynamism: Mining, Supply Chain, and Education | 4 | 5 | 0 | 0 | Host asks about expansion areas and explicitly references portfolio company Odyssey when asking about education. Katherine details how Education Savings Accounts enable alternative schooling tech. | |
| Request for Startups: Protecting Low Earth Orbit Infrastructure | 4 | 5 | 0 | 0 | Host prompts guests for requests for startups and quotes Katherine's prior phrasing about fighting in space. Ben outlines why US debt and geopolitical competition require strong defense allies. | |
| Great Power Competition: Attritable Mass vs. Industrial Strategy | 3 | 6 | 1 | 0 | Host asks about U.S. competitive advantages versus China. Katherine highlights the stark economics of war where a thousand-dollar drone destroys a hundred-million-dollar exquisite system, citing China's industrial mass. | |
| Re-Industrializing America Through High-Tech Manufacturing | 4 | 6 | 1 | 0 | Host introduces the topic of advanced manufacturing versus bringing back old assembly jobs. Marc quotes Heraclitus to explain why legacy factories won't return and outlines blue-collar plus robotics manufacturing. | |
| Free Market Dynamism vs. Soviet-Style Central Planning | 5 | 7 | 3 | 0 | Host prompts Marc with a strategic question on whether America wins by being more like itself or copying China. Marc and Ben dissect central planning history, with Ben calling belief in centralized control a psychological defect. | |
| Defense 2.0 Startups and Critical Mineral Independence | 2 | 5 | 1 | 0 | Host asks for concrete investment theses to close the episode. David and Katherine explain Defense 2.0 partnerships with legacy primes and critical mineral software opportunities. |
Statements from this episode (37)
Andreessen: Wars Can No Longer Be Won With Mass Machinery
“In the old model of World War II era, mass machinery and mass men to win wars like those days are long over.”
Horowitz: Legacy Defense Suppliers Lag Far Behind Commercial Tech Curve
“We kind of knew the companies that we were investing in and we knew the companies that we were buying you know, missiles and aircraft carriers from, and like, they weren't of the same caliber in terms of the, where they were on the technology curve, and so we …”
Andreessen: All Major 20th-Century Tech Companies Had Defense Businesses
“Many, many great American tech companies, you know, including all, all the big names from the fifties through the nineties all had, you know, very big government businesses, defense businesses, you know, were very important to the national mission.”
Horowitz and Andreessen Held Top-Secret Security Clearances for Netscape
“Yeah, actually, both Mark and I had, for years, top secret clearance because of those deals.”
Sundar Pichai Described Project Maven Backlash as International AI Revolt
“Oh, they all, like, yeah, it was like a revolt from, I remember Sundar described it to me, a revolt from the international AI community.”
Horowitz: Google Reversed Its Position to Work With Defense Department
“Google has definitely since Google slash Alphabet has reversed their position and now do work, ah, with the US government and the Defense Department.”
Andreessen: Stanford Was Forced to Divest Military R&D in 1970s
“Stanford was actually forced in the 19 seventies to divest all of their military R and D and any R and D that touched the military into something called the Stanford Research Institute.”
Andreessen: Top Universities Banned ROTC and Intelligence Recruiting Post-Vietnam
“Many top American universities, You know, forever, basically since Vietnam, have not allowed like ROTC or like, you know, intelligence agency recruiting happening on campus.”
Boyle: 'The Social Network' Was 2010s Tech's Most Defining Movie
“I've always said that I think the social network had probably the greatest influence of the twenty-tens in terms of being a defining movie of what technology means.”
Horowitz: Refusing to Sell Technology to the US Military Is Illogical
“I'll just say about the kind of anti, you know, we're not gonna sell stuff to the US military and so forth. It's like, well, so here are friends of ours who are risking their lives to protect us, and we're not going to make sure they have the best, safest equi…”
Only Three Tech Employees Attended an Obama Border Official's Talk
“He went out and actually got a former director, ah, actually, he got, ah, a guy who had actually been in the Obama administration, as basically the head of border, the head of the border security in the Obama administration, to basically come in and give an ho…”
Andreessen: Anti-Defense Tech Employee Revolts Are Permanently Over
“That level of emotionality, like, it had its moment, and I think it's just over now, and I think we, and, you know, hopefully, you know, hopefully we, and hopefully a lot of others are just kind of, you know, back, back to, back, you know, in a lot of ways, ba…”
Ulevitch: Early Defense Startups Paired Commodity Hardware With Advanced Software
“A lot of the American Dynamism companies, at least the early sort of innings of where they started, a lot of them were using off-the-shelf commodity hardware with really advanced software.”
Ulevitch: Flock Safety's Early Hardware Was a Cell Phone Camera
“So Flox Safety was basically a camera a cell phone camera in a box with power to it and an LTE connection.”
Ulevitch: Defense Hardware Allows Better Inventory Management Than Consumer Hardware
“When you do government hardware or hardware for the Pentagon or across enterprises, it's a much different sales cycle and process. You can better manage your inventory and your pacing and your hardware spend.”
Boyle: Apex Space Reached Orbit in Record 13 Months From Design
“We were one of the earliest investors in a company called Apex Space. I believe they are the fastest company to get from clean sheet design to orbit in 13 months in, in history which is pretty incredible.”
Boyle: Low Earth Orbit Faces a Critical Ground Station Shortage
“We do not have enough ground stations to get data back to Earth as quickly as we need to. And given that low Earth orbit has just been, I would say, you know, saturated by payloads in the last several years, particularly because the cost of launch has come dow…”
Boyle: SpaceX's Biggest Legacy Is Spreading Manufacturing Methodology Across Industry
“I do think that the legacy of SpaceX, yes, everything they've built and done is important, but the manufacturing processes that people have learned at SpaceX is going to be carrying America forward for generations. When you think how tens of thousands of peopl…”
Boyle: SpaceX and Palantir Sued the Government to Open Defense Procurement
“SpaceX and Palantir walked so that everyone else could run, and I, it's maybe unfair to say that they walked, but both of them had to sue the government.”
Ulevitch: Exquisite Military Platforms Will Not Win Future Wars
“I think the war in Ukraine really put a very, very bright light On how our exquisite large platforms are not gonna be the platforms for the fight of the future.”
Ulevitch: Almost Every Major European Nation Committed to Doubling Defense Spending
“Almost every major country in Europe has made a commitment to double or more their spending their GDP level spend on, on defense.”
Ulevitch: Surge in European Defense Spend Will Largely Flow to US
“And that spend is ultimately gonna go, there aren't enough incumbents in Europe to have all that money go to companies in Europe. So it's a huge opportunity for their strongest ally, which is the United States, for the companies here to actually go and increas…”
Ulevitch: a16z Will Shift Defense Investments Into Mining and Supply Chains
“I think as you look to the future, I mean, everyone has their own view of what the future will look like for American dynamism, but I think we, you'll see us increasingly shift left. That's why we look at minerals and we look at critical, critical minerals and…”
Boyle: Few Lessons From the Ukraine War Will Apply to Future Conflicts
“I actually think there's very few lessons from Ukraine that are going to be relevant in the future war, candidly.”
Boyle: Low Earth Orbit Infrastructure Will Be Critical in Future War
“I think that the future war, the infrastructure that we already have in low-earth orbit will be exceptionally important and we have to figure out ways to protect what we're building in low Earth orbit in particular.”
Andreessen Horowitz Is Actively Seeking Investments in Offensive Space Weapons
“And so I think anything to do with offensive space both on the software side and the hardware side, we're very excited about.”
Boyle: Ukrainian Operators Unanimously Named Starlink Their Most Vital Tech
“Every time I talk to people on the ground and ask them, what's the most important piece of technology that you use, they all said Starlink.”
Boyle: Nine of Top 10 Global Market Cap Companies Are US Tech
“25 years ago, if you looked at the market cap of the largest 10 companies in the world, 25 years ago three of the top 10 were American tech companies. Now that is nine of the top 10, 25 years later.”
Boyle: $1,000 Drones Destroying Multi-Million-Dollar Systems Fundamentally Alters War Economics
“If you have an exquisite system that was hundreds of millions of dollars, and it can be taken out with a thousand dollar drone that changes the economics of war, and it particularly changes the economics of a war of mass.”
Boyle: China Expanded Its Industrial Base Supplying Both Sides in Ukraine
“China has been supplying both sides of that war. When you look at sort of the drone warfare that is, that has come out of the trenches for the last three years, You know, China is a supplier in the same way that Russia is a supplier to its own side, but that m…”
Andreessen: Traditional Assembly Line Manufacturing Jobs Will Not Return to US
“I think what you're just not gonna get practically is you're just, you're not gonna get the old factories back, and you're not gonna get the old jobs back in the way that they were 40 years ago when they were lost.”
Andreessen: Robotics and Physical AI Will Be Largest Industry Ever Built
“The great industry of the future that we could spend a long time talking about is gonna be robots, right? AI in mechanical form which is gonna be, you know, I think the biggest industry that's ever been built.”
Andreessen: 1980s US Economics Textbooks Claimed Communism Was Superior to Capitalism
“American, common American undergraduate textbooks, economics textbooks, into the 19 eighties would stated as fact that communism was the superior economic system to capitalism, and they would have these charts of projected growth rates, and they would show tha…”
Andreessen: Corporate Five-Year Plans Originated From Joseph Stalin
“The creator of the concept of the five-year plan was, of course, Joseph Stalin. Like, it was literally the Soviet Union run as five-year plans, and actually, in, in the, between the 2019 twenties, 19 fifties, that idea actually mainstreamed itself into Western…”
Horowitz: Short Any Company Operating on a Five-Year Corporate Plan
“A great Investing strategy is to, if you see a company with a five-year plan, short it and it works every time, and yet they still do it, and I, it just comes, it really has no basis in anything.”