Teahose.
SIGN IN
NEW HERE — WHAT TEAHOSE DOES
We read the entire AI & tech firehose — so you don't have to.
PODPodcastsAll-In, No Priors, Acquired…
NEWNewslettersStratechery, Newcomer…
PAPPapersPhysical AI research
PHProduct Huntdaily launches
VCInvestor ScoutSequoia, a16z, Benchmark…
CLAUDE DISTILLS →
7 reads, 30 sec each — free, 6 AM ET.
+ a live graph of the companies, people & themes underneath.
HOME/THE A16Z SHOW/Energy, Minerals, and the Physic…
POD
// EPISODE
THE A16Z SHOW

Energy, Minerals, and the Physical Stack Behind AI

DATE May 13, 2026SOURCE THE A16Z SHOWPARTICIPANTS DREW BAGLINO, ERIN PRICE-WRIGHT, TURNER CALDWELL
// KEY TAKEAWAYS3 ITEMS
  1. 01The Physical Stack Is the Real AI Bottleneck
  2. 02America's Critical Mineral Deficit Is a Generational Emergency
  3. 03Autonomy and Software as Industrial Operating Systems
In this episode

A16Z Podcast | Drew Baglino, Erin Price-Wright, Turner Caldwell


1. Key Themes

The Physical Stack Is the Real AI Bottleneck

The dominant framing of the AI race — models, chips, algorithms — ignores the foundational physical infrastructure that makes any of it possible. Both founders argue that energy, minerals, and grid infrastructure are the true rate-limiters.

"The constraint on America's AI future and re-industrialization more broadly is in many ways atoms and not algorithms." — Erin Price-Wright 00:03:33

"Even though there's so much innovation happening at the edge of the grid, on the other side of the wire, there's really been no change. The systems underpinning the grid today are the same largely mechanical systems that were developed over 100 years ago." — Drew Baglino 00:09:18

America's Critical Mineral Deficit Is a Generational Emergency

The U.S. isn't just behind on mining — it's behind on the entire design, build, and ramp-up cycle. Even with permitting fixed, the construction and commissioning phases alone add 8-10 years of lag, meaning policy fixes alone won't close the gap with China.

"The U.S. is 50 years behind on critical mineral supply. We are too slow at designing, building, and ramping up new mineral capacity, even after we have license to operate." — Turner Caldwell 00:00:00

"Once you start building, it can take five years to get something built, and then it can take three to five years to get something actually operating at rate. And that's why we're laser focused on that, so that even if we kind of start to lower the burdens to play catch up with China, we actually have to go faster than China does." — Turner Caldwell 00:08:03

Autonomy and Software as Industrial Operating Systems

Both companies are betting that AI and reinforcement learning can replace the embedded institutional knowledge that the U.S. labor pool has lost over decades of industrial attrition — not as a software product sold to others, but as an internal operating advantage baked into vertically integrated operations.

"We're making a big bet on autonomy in refineries, where we use reinforcement learning to actually remove humans from the loop in determining how refineries operate." — Turner Caldwell 00:00:20

"We don't have that labor pool here that has that embedded know-how that can walk up to a refinery and quickly get it operating on spec and then also manage that variability." — Turner Caldwell 00:13:41


2. Contrarian Perspectives

Labor Cost Is a Red Herring — Supply Chain Co-location Is the Real Moat

Conventional wisdom blames high U.S. labor costs for manufacturing uncompetitiveness. Baglino directly refutes this with numbers, pointing instead to logistics and supply chain proximity as the decisive variable.

"Today's factories are really automated. The labor differential is less than 10% of cost of goods sold. It might even be less than 5%. But what actually is driving the competitiveness of the different locations is supply chain... Everything that you could possibly need to build a car, which has 7,000 parts in it, is within less than a three-hour's drive [in China]. Getting to that kind of co-location of the supply base in the United States would be a major unlock." — Drew Baglino 00:10:46

Software Alone Cannot Penetrate Industrial Operations — You Must Own the Operating Layer

Most tech investors assume software companies can sell into industrial operators. Both founders argue the opposite: the culture and tech literacy gap is so severe that you must embed software engineers directly inside operations and control the culture to get any software adoption at all.

"The gate to software penetration, what sets the rate of software penetration and technology penetration into these plants and into these mines, ultimately is the operating teams. For the most part, it is pen and paper and maybe 150 spreadsheets scattered around an operation... That's why we think that sitting the software engineers right next to the operating teams, but not in a forward-deploy engineer type way where everyone has the same incentives, is what's going to yield the best results." — Turner Caldwell 00:14:39

Permitting Reform Is Necessary But Insufficient — Execution Speed Is the Actual Constraint

The policy conversation around critical minerals focuses almost entirely on permitting. Caldwell argues this is the wrong emphasis — the real bottleneck is the 8-10 years required to build and ramp once permitted, which no amount of regulatory relief addresses.

"That doesn't actually solve the underlying problem, which is that we are too slow at designing, building, and ramping up new minerals capacity, even after we have license to operate." — Turner Caldwell 00:07:34

The U.S. Has the World's Best Power Semiconductor Technology and Is Giving Away the Benefits

The U.S. invented and leads in silicon carbide power semiconductors — yet has failed to commercialize that advantage domestically, effectively handing the economic returns to foreign manufacturers.

"The world's leading producer of silicon carbide, which is a key power semiconductor, is based here in the U.S. And so we should be leveraging the applications of that technology here first, manufacturing here at home. And if we don't, we're basically losing all the benefits that accrue from that technology to other countries." — Drew Baglino 00:07:01

Local Jurisdictional Alignment Beats Federal Policy as the Practical Execution Variable

While federal industrial policy gets all the attention, Baglino's on-the-ground experience suggests that local-level alignment — jurisdictions choosing to say yes at every step rather than using compliance processes to obstruct — is the single most powerful lever for speed.

"When you're working with your local jurisdiction, they can use the process for a code-compliant project to say no at every step, or they can say yes at every step... When you do find that, it can be magical. That's been my experience." — Drew Baglino 00:09:44


3. Companies Identified

Mariana Minerals

Software-first critical minerals mining and refining company. Operates a copper mine in southeast Utah and is building a lithium refinery in Texas, with a goal of 10 projects in 10 years. Building three proprietary operating systems: Capital Project OS (agentic workflow automation for engineering/construction), Plant OS (RL-controlled refinery operations), and Mine OS (autonomous mining control). Mentioned as a model for how vertical integration plus AI can close America's 50-year critical mineral gap with China.

"We develop, we engineer, build, and operate minerals projects. We have a copper mine that's operating in southeast Utah producing high-purity copper materials today. And we're building a lithium refinery in Texas with the goal of building 10 projects in the next 10 years." — Turner Caldwell 00:04:57

Heron Power

Power electronics company building solid-state transformers using silicon carbide semiconductors and software to replace legacy steel, oil, and copper-based grid equipment. First large factory (approx. 500 jobs) in build-out phase. Mentioned as a critical infrastructure play addressing the grid's 100-year-old hardware problem at a moment of exploding electricity demand from AI and electrification.

"At Heron Power, we're focused on building solid-state transformers to use silicon and software to replace steel, oil, and copper in power conversion at data centers, large-scale energy installations like solar and battery projects and others." — Drew Baglino 00:06:00


4. People Identified

Drew Baglino

Founder and CEO of Heron Power. Former 18-year Tesla veteran who led Powertrain, Energy (responsible for Megapack), and built the 4680 battery manufacturing program in Texas (50 GWh facility) and the Megapack megafactory in Lathrop, California (from JCPenney warehouse to first product in 11 months). Described as "something of a deity among power electronics nerds." Mentioned for his rare combination of deep hardware manufacturing execution experience and bold vision for grid modernization.

"I built the megafactory with my team in Lathrop, California in 11 months. It was a JCPenney warehouse. 11 months later, the first product came off the line." — Drew Baglino 00:09:44

Turner Caldwell

Co-founder and CEO of Mariana Minerals. Former Tesla minerals and metals team lead who built Tesla's global mineral supply chain. Now applying Tesla-style systems thinking and AI to the minerals industry. Mentioned for pioneering the application of reinforcement learning to refinery control and autonomous mining operations — a non-obvious and potentially transformative approach to closing America's critical mineral gap.

"We're making a big bet on the fact that we can build systems that enable us to engineer things faster using large language models, accelerate the procurement lifecycle, and do autonomous, short-interval control of construction operations." — Turner Caldwell 00:12:43


5. Operating Insights

Hire From Analog Industries When Your Talent Pool Doesn't Exist Yet

When re-industrializing in a domain with thin talent pipelines, look laterally to industries with transferable operational or engineering skills rather than searching for direct experience that the market can't supply.

"I was hiring people out of high-speed bottling plants and out of syringe manufacturing facilities where they're making billions of syringes. If you can get that creative hat going, you find that there's immense depth of talent in the U.S." — Drew Baglino 00:20:04

"The oil and gas sector has a bunch of extremely good talent. And the software space, a lot of the underlying optimization algorithms we're writing for our plants look very similar to the optimization algorithms in dog-walking apps and Uber ride optimization, underwriting loans, ad optimization." — Turner Caldwell 00:20:28

Use Do-or-Die Conditions to Extract Peak Performance From Teams

Both founders identify that Tesla's secret wasn't just culture — it was genuine existential stakes that forced focus and urgency. For startup operators, manufacturing that condition deliberately is a competitive lever.

"Many times in Tesla's history, whether or not the paycheck will clear was bet on the team within the company executing well. And that is a very focusing reality. It drives people to do their best work. You end up needing to manifest that outcome." — Drew Baglino 00:16:54

Mission Clarity Is a Talent Acquisition Strategy, Not Just a Culture Statement

A well-articulated, compelling mission acts as a filter that pre-selects for high-agency, growth-oriented talent — reducing the cost of recruiting while improving the quality of the candidate pool.

"There was always a clear vision of the purpose of the company. And that's like a beacon for talent. People like, oh, I want to work on that. So you get to basically pick from the best already. And then you're in this high growth environment, anybody who is excited about their career trajectory is also going to want to work there." — Drew Baglino 00:17:50


6. Overlooked Insights

A Federal Highway Trust Fund Model for the Grid Could Be the Single Biggest Unlock

Baglino floats this idea almost in passing at the very end — but it's a structurally significant policy concept. The U.S. interstate highway system was built via a dedicated funding mechanism that bypassed the normal patchwork of local and state interests. Applying that same model to grid infrastructure could solve the transmission bottleneck that is currently the binding constraint on data center build-out, renewable energy integration, and domestic manufacturing competitiveness simultaneously.

"I like the idea of a federal highway trust fund for the grid. It never has existed. And that's sort of why we have this patchwork. How do we find a master plan of build out of linear infrastructure that maybe connects those manufacturing energy build-out zones to improve resilience, reduce costs, and really move us forward as a nation." — Drew Baglino 00:22:45

This is not a marginal policy tweak — it would represent the largest restructuring of U.S. energy infrastructure financing in a century, and the analogy to the interstate system (which transformed American economic geography) suggests the magnitude of the potential impact. No one in the conversation pushed on it.

The Handoff Between Mining and Refining Is an Underappreciated Source of Value Destruction

Caldwell briefly mentions that the split between extraction and processing creates "market inefficiencies" — but this is actually a profound structural flaw in the critical minerals supply chain that most policy and investment attention misses entirely. Focusing on mining permitting without controlling refining (and vice versa) leaves enormous value on the table and perpetuates dependence on Chinese processing capacity even when raw materials are extracted domestically.

"We focus on the full chain from mining all the way through refining. You have to focus on the full chain. That handoff in the middle leads to a lot of actual market inefficiencies." — Turner Caldwell 00:12:43

This implies that any investment or policy thesis focused solely on domestic mining — without vertical integration through refining — may be structurally incomplete and ultimately fail to achieve supply chain sovereignty.