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Elad Gil and Sarah Guo: Built to Grow, by @she_travels
Built to Grow is a new sales handbook from Stripe Press. Two investors endorsed it on the same day. Elad Gil wrote that he was "so excited" for it and linked to it on Amazon . Sarah Guo gave a more specific reason. For more than a decade she has coached strong product builders through their first stretch of B2B sales and marketing, and she wishes the book "had existed sooner for me to gift." She also called it "an education" and praised its "beautiful design" .
Paul Graham and Garry Tan: Eric Rea on rebuilding Podium around AI
Podium cofounder Eric Rea posted that his company has reached $150M ARR twice. The first time took 8 years and the second took 2.5. Podium has now crossed $150M in AI annual recurring revenue. Three years ago the company had well over $100M in revenue, but it chose to "start over." It bet its future on AI employees that do the work for customers rather than protect the software it had built over a decade.
Paul Graham said established companies will at best adapt to AI while new startups start out AI-native. He called Podium "an interesting example of a company in the middle" that remade itself as AI-native "by great effort." He also called it an example of founder mode: a hired CEO, he argued, wouldn't have the moral authority, or probably wouldn't care enough, to ignore existing revenue and refocus on AI. Garry Tan shared it as "what it looks like when it *really* hits."
Patrick Collison: Arc Institute preprint on the genome's "dark matter"
Collison shared a new Arc Institute preprint thread from @pdhsu. The work uses latent-space representations of genomes from single-cell life to find new candidate functional RNAs. The preprint uses genome language models and AI agents. It targets the RNA-encoding stretches between protein-coding genes, which conventional computational tools struggle with. Collison said he thinks it is "cool" for three reasons:
- It puts deep learning and model interpretability to productive use on a different kind of knowledge.
- It shows how agents might speed up discovery in huge combinatorial search spaces.
- It is an early example of computational methods working together with wet-lab biology.
Brad Gerstner: "Why we invested in Arda"
Gerstner pointed followers to a post by @apoorv03 that links the investment memo. He also called Arda a "killer team" working to make US manufacturing the best in the world. Arda was founded by Bob McGrew, and the memo gives three reasons for investing:
- McGrew has been preparing for this mission for at least two decades.
- The mission is one that "MUST be pursued."
- The plan is sequenced well: first software for manufacturing engineers, then robotic lines that update as fast as the design does.
For readers who prefer video, the memo links a CNBC conversation with McGrew.
a16z podcast: the film Digger
In a16z's Frontier conversation with Marc Andreessen, Ben Horowitz and Chris Dixon, one speaker said he is "completely obsessed" with Digger. The transcript doesn't name the speaker. His advice is to sit through it even though you will be tempted to walk out after the first half hour: there is "a reason why they did what they did," and the film is "very clever." He also used it to make a business point. The film lost about $200M on a roughly $180M budget, and he argued that on an AI-enabled $2M budget it "would have been insanely profitable."
Shorter mentions
- Guillermo Rauch cited the book Running with the Kenyans. He described Kenyan marathoners who start races faster than seems possible, which sets a new pace and teaches them they could have gone faster. He tries to bring that idea into the standard he sets at work (interview).
- Brian Chesky named the industrial designer Charles Eames, whom he studied at RISD, as one of his favorite designers. He quoted Eames's line that a designer is "a very thoughtful host anticipating the needs of their guest" and used it to describe Airbnb's role: "We set the conditions for magic" (interview).
A discussion participant recommends watching Digger through its first half-hour, despite its initially off-putting, comical presentation: the full movie is “very clever” and a notable creative achievement.
Marc Andreessen said he was “completely obsessed” with the film Digger and advised viewers to stay past its first half-hour: although the opening may tempt them to leave, the full film reveals why it was made that way, which he called “very clever.” He cited a friend and her mother leaving early as an example.
Guillermo Rauch drew on Running with the Kenyans while discussing his approach to fitness and work: he recalled Kenyan marathoners setting a seemingly inconceivable early pace to establish a new standard and show they could go faster.
Brian Chesky called industrial designer Charles Eames one of his favorite designers, said he studied him at RISD, and quoted Eames’s description of a designer as “a very thoughtful host anticipating the needs of their guest” while explaining Airbnb’s host-like role in creating the conditions for meaningful experiences (interview).
Patrick Collison called Arc Institute’s new work “cool”: a preprint using genome language models and AI agents for biological discovery and genome mining, including latent-space representations of genomes from single-cell life to identify candidate functional RNAs. He linked the announcement. He highlighted deep learning and model interpretability applied to a different kind of knowledge, agents’ potential to accelerate discovery in vast combinatorial spaces, and the prospective synergy between computational methods and wet-lab biology.
Bill Gates offered a broad endorsement—not a named title—of Harari’s writing about the past, calling it eloquent while reflecting on historical shortages, disease, and war.
Paul Graham highlighted Eric Rea’s post about Podium’s AI shift as an “interesting example” of an established company remaking itself as AI-native, contrasting established companies adapting to AI with new startups built AI-native from the start. Rea’s post says Podium crossed $150M in AI ARR after deciding to start over and bet its existing software business on AI employees.
Sarah Guo praised Built to Grow, a new Stripe Press book by @she_travels, saying she wished it had existed sooner to gift to product builders she has coached through the initial ramp of B2B sales and marketing for more than a decade . She later called the book “an education” and praised its design .
Garry Tan highlighted @ericwilliamrea’s X post as an example of AI “really” transforming SaaS; the post reports Podium reached $150M in AI ARR in 2.5 years, compared with eight years for its first $150M ARR business.
Elad Gil endorsed Built to Grow, calling it a new book by @she_travels and saying he was “So excited” about it . He shared an Amazon link to buy it .
Brad Gerstner directed followers to an X post by @apoorv03 linking to the article “Why we invested in Arda”, using a “👇👇” reply. In the same thread, Gerstner praised Arda as a “killer team” working to make US manufacturing the best in the world, saying greater resilience and productivity are good for America. The article’s investment case emphasizes founder Bob McGrew’s preparation, the mission, and a sequenced plan: manufacturing software first, robotic lines next. It also points readers who prefer video to a CNBC conversation with McGrew and @Kr00ney (watch).
Brian Armstrong called @base’s post about @aave bringing lending and borrowing to tokenized stocks on Base a “good case study” of crypto updating financial services, increasingly on Base.
Satya Nadella directed followers to read an article about data and AI agents at TK Elevator. He said the technology gives service technicians access to decades of shared knowledge, helping them spend less time searching for answers and more time keeping elevators and escalators running; he did not state a separate reason for recommending the article.
Jason Lemkin promoted the new 20VC x SaaStr piece “$20M ARR and Unfundable” (link); its hook is a $20M ARR company growing 7× that cannot get a meeting, with Lemkin highlighting that capital is going to fewer names and seed is harder than growth.
Satya Nadella called Microsoft’s research published in Science “important work,” highlighting its diagnostic orchestrator’s ability to reason through complex medical cases with greater accuracy and lower testing costs . He linked to Mustafa Suleyman’s post about the research: https://x.com/mustafasuleyman/status/2113332931423039945 .
Elon Musk replied “True” to @TheCaptainEli’s account of Starbase’s growth and public, iterative rocket development, affirming a post that introduces the creator’s short film about Starbase; Musk gave no separate rationale. Watch the film.
Palmer Luckey linked and praised JD Vance’s video on H-1B visas, saying Vance was putting facts and statistics front and center. Vance said H-1B workers earn $20,000 less than U.S. citizens hired in the same position, and workers brought in by foreign outsourcing firms earn $48,000 less in a similar position. Luckey recommended it amid his argument that visa-program abuse lets companies replace American workers for less money; he said business leaders stay silent for fear of attacks from both political sides.
Palmer Luckey enthusiastically amplified Marathon Fusion’s X post, calling alchemy’s “millennia-enduring allure” irreplaceable and saying it was “an incredible time to be alive”; the linked post claims Marathon Fusion turned mercury into stable gold, beating CERN’s record by a factor of 10.
Martin Casado reacted “!!!!!! Exciting !!!!!!” while linking to Kimi Moonshot’s post , which contains a video with no identifying description in the supplied text . His enthusiasm is the only stated rationale.
Marc Benioff endorsed Jason D. Clinton’s linked X post (“Jason is 100% right. Code red”), which urges security leaders to seek board help for basic security—not AI—as conditions worsen, and says they need to hold on for about 18 months.
Why we invested in Arda

Flip over your iPhone and it says: Designed by Apple in California. Assembled in China. America is still the best place in the world to design things. We’ve just mostly stopped building them here.
Arda, which came out of stealth this week, wants to rewrite the second half of that sentence with AI and robotics. Its founder, Bob McGrew, and I go back over a dozen years, to when we were both engineers at Palantir.
Bottom line up front on why we invested:
Bob makes no small plans, and he’s been preparing for this one for at least two decades
The mission is a big one… and it MUST be pursued
The plan is sequenced right. Act 1 is software for manufacturing engineers. Act 2 is robotic lines that update as fast as the design
It’s early. If you’re an engineer or researcher looking for a big mission, now is the time. Please reach out!
Our detailed thesis is below. If you’d rather watch than read, Bob and I also talked through all of this with @Kr00ney on CNBC (opens in new tab):
The team
Bob makes no small plans. He has a habit of picking the most audacious mission in the room, usually before anyone agrees it’s possible. He joined PayPal in 2000, when moving money over the internet sounded reckless. In 2005 he left his PhD to become Palantir’s second engineer, ran engineering and product for its first decade, and co-developed forward deployed engineering… a model half of AI is copying today. Then OpenAI, a small nonprofit lab that wanted to build AGI. He spent his first year on its robotics team, led research from 2018 to 2024, and left as Chief Research Officer right after shipping reasoning.
Seen that way, he’s been preparing for Arda for two decades. A problem this size needs frontier AI, robotics and the forward deployed muscle to ship inside a customer’s four walls, and Bob has spent a career collecting all three. Robotics has been on his mind for at least ten years. After Palantir he taught himself deep learning, had a robot playing checkers from vision by 2016, decided robotics wasn’t ready to be a startup yet, and went to OpenAI to learn. He looked hard at other ideas before picking this one, and we spent a lot of that time with him. There was as much conviction in the paths he didn’t pick as in the one he did.
Alex Mark, CTO, ran engineering for Palantir Gotham’s framework and application layers, about 80 developers. Then, instead of starting a company, he went to the US Digital Service and led the technical build of the IRS Direct File pilot, which shipped in seven months.
Augustus Odena, Chief AI Officer, spent about six years at Google Brain and co-authored Scratchpads (opens in new tab), an early version of the think-before-you-answer idea that Bob later shipped at OpenAI. He then co-founded Adept to build agents that take actions inside software, which is pretty much what Arda’s first product is.
Former Palantir engineer Jakob Frick rounds out the co-founders, and the team adds manufacturing engineers from Tesla and AI researchers from MIT, plus Palantir alums Patrick Woody, Grace Wang, Lucas Lemanowicz, Tim Yousaf, Jennifer Tao, and Paul Ryan. They’re friends from my Palantir days, all of them certified legends, and in very good company with the rest of the Arda team.

The Mission
Let’s start with one chart:

This isn’t only an economics problem. It’s a sovereignty problem. Over forty years we moved the assembly of our most important products into the territory of our main geopolitical adversary, and that assembly base became a cornerstone of China’s industrial strength. The risk isn’t hypothetical. When China sanctioned Skydio (opens in new tab), the largest US drone maker, in October 2024, its battery supplier was ordered to cut it off, and Skydio had to ration one battery per drone. A country that can’t build its own drones, or the equipment that powers its data centers, isn’t fully in control of its own security.
Labor cost is part of the story. Chinese manufacturing wages run at roughly a fifth (opens in new tab) of US levels. But Bob’s diagnosis is sharper: the products that matter now change constantly. An iPhone is mostly redesigned every year, only about a quarter of its parts carry over, and the line runs at full rate for roughly four months. You can retrain a person in a day. Reprogramming a conventional automated station takes three to six months and can cost close to $1M. So fast-changing products get built by armies of people who can be retrained quickly… and that’s Shenzhen.
The strategic need is clear but can we make the economics work in the US? Should we answer cheap labor with cheaper labor? No. Well, we can’t. And even if we wanted those jobs, we don’t have the people. US manufacturers could need 3.8 million workers (opens in new tab) between 2024 and 2033, and about 1.9 million of those roles could go unfilled. The answer is technology: AI and robotics that let a factory reconfigure as fast as the design changes. And you start where the stakes are highest.
Arda is starting where I think the US can least afford to depend on anyone else:
Defense. The Army wants to buy at least a million drones (opens in new tab) over two to three years, versus about 50,000 a year today. Roughly 20x.
AI infrastructure. Large power transformers averaged about 128 weeks (opens in new tab) of lead time in Wood Mackenzie’s 2025 survey. Arda already works with manufacturers of transformers and electrical equipment that bring data center power online.
Anduril is the anchor customer. The teams started working together before Arda was even incorporated, and Arda is now used in every Anduril division as part of ArsenalOS, Anduril’s manufacturing software. Basic work instructions that took about 10 hours now take 15 minutes. Workflows that took up to 30 hours take about 2.5. As Anduril co-founder and COO Matt Grimm put it (opens in new tab): “We would be behind on our production goals without it.”
The Plan: Act 1 and Act 2
Act 1: Cursor for manufacturing engineers. Picture a 7,500-piece Lego set that shows up fully built, with no instruction book. A CAD file is a lot like that. Every part sits in its final position, but nothing says what order to assemble them in, with what tools, at which station. Working that out is the manufacturing engineer’s job, and today it’s spread across Lucidchart, PowerPoint and Excel, with no single source of truth.
Arda built one: an IDE for manufacturing engineering with an agent inside. The agent reads the design files, works out the assembly sequence (using robotic motion planning under the hood) and writes the work instructions for the engineer to review. One Anduril ME lead had 56 steps written for him in 15 minutes, against his own estimate of 5 to 10 hours by hand. Pricing is usage-based. For customers with ITAR data, Arda deploys inside the customer’s own systems… the forward deployed engineering playbook!
Act 2: robotic lines that change as fast as the design. Traditional automation is a Rube Goldberg machine. Half the effort goes into designing it, half into calibrating it, and it’s built for exactly one product. Change that product by 5 or 10% and you’re looking at months of rework. Act 2 is AI agents that program robots to carry out the Act 1 plan, station by station, with perception and manipulation models making them robust enough to deploy without weeks of tuning. The goal is a line you can reconfigure in days, about as fast as you can retrain a person. Arda is already prototyping it.
If that works, the economics flip, and fast-changing products no longer have to be built in Asia. Bob’s line: “Imagine a fully automated version of Shenzhen in West Texas.” The path runs from defense and data center equipment to routers and consumer drones, and eventually to the smartphone, which no one has ever built at scale in America.
Why this order? The manufacturing plan has to live in software before a robot can execute it, and Act 1 puts Arda on real factory floors every day. Starting with the robots would have meant guessing at the problem.
Who should work at Arda
It’s early, and the foundation gets poured in the next year or two. You should talk to them if you’re:
A software engineer who wants to sit next to the user. If you loved the FDE life, this is that… applied to atoms.
An AI researcher in agents, planning, perception or manipulation. Act 2 is an open research problem with a customer already waiting.
A robotics or automation engineer tired of one-off stations that break the moment the product changes.
A manufacturing engineer from a place like Tesla, Apple or SpaceX who has lived through a design change hitting the line.
A call to arms
One thing I took from Palantir is that the strongest force on a team is a big mission. That’s why I joined Palantir. Arda is that kind of a life-changing mission.
For fifteen years the best engineers went to work on software, and lately on models. The next decade needs some of that talent pointed at the physical world… at the factories that build our drones, our grid equipment and, one day, our phones. If you’re looking for a mission big enough to spend the next ten years on, this is for you. Go build more things: arda.ai (opens in new tab)
Disclaimers: https://www.altimeter.com/terms (opens in new tab)
This post and the information presented are intended for informational purposes only. The views expressed herein are the author’s alone and do not constitute an offer to sell, or a recommendation to purchase, or a solicitation of an offer to buy, any security, nor a recommendation for any investment product or service. While certain information contained herein has been obtained from sources believed to be reliable, neither the author nor any of his employers or their affiliates have independently verified this information, and its accuracy and completeness cannot be guaranteed. Accordingly, no representation or warranty, express or implied, is made as to, and no reliance should be placed on the fairness, accuracy, timeliness or completeness of this information. The author and all employers and their affiliated persons assume no liability for this information and no obligation to update the information or analysis contained herein in the future.
Brad Gerstner directed followers to an X post by @apoorv03 linking to the article “Why we invested in Arda”, using a “👇👇” reply. In the same thread, Gerstner praised Arda as a “killer team” working to make US manufacturing the best in the world, saying greater resilience and productivity are good for America. The article’s investment case emphasizes founder Bob McGrew’s preparation, the mission, and a sequenced plan: manufacturing software first, robotic lines next. It also points readers who prefer video to a CNBC conversation with McGrew and @Kr00ney (watch).