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Our 2Q 2026 letter is out: "Is It Good Enough?"
The book on the bedside table is Dot.Con, John Cassidy's history of the dot-com bubble. Not a macro call. Just useful to remember what 1999 felt like from the inside whilst positioning a portfolio in 2026.
saltlightcapital.com/letters
Went cycling for first time in 5 yrs. Naturally, none of my sensing tech works (or is incompatible).
Startled to see the Innovatorās Dilemma has played out in sensing market.
Garmin has gone way upmarket because a Chinese brand Xoss has come in and commoditised basic telemetry (HRM, RPM etc).
Looks like Garminās product now over-serves the customer with over-priced features like road maps and group communications (a phone does this already). These features are totally unnecessary for the avg biker.
Still a way from having full edge AI compute taking significant share from cloud-based AI.
The Muse Spark Open is optimised for 2 (!!) Mac Studios with 512GB each.
research.meta.ai/blog/muse-sā¦
Iām trying to contrast current AI market conditions to $ASML management raising ā28 production by 30%.
ASML is at the tip of the spear of the supply chain. This is related to 2029-2030 production in fabs.
Interesting slide from IOCO; inferred that they will buy around 20% of the company in next 2 yrs.
R2 in FCF/s in 2 yrs relative to R3.88 share price.
This framing from @satyanadella crafts the argument for SaaS disintermediation so well.
VM + Tokens + System of Record.
You can see the TAM expanding here for Microsoft once you have the "headless" data layer.
Happy to report that this light has been fixed.
I've never done it because it takes too much effort, but today I had my AI bot start emailing @CityofJoburgZA to report broken traffic lights on my way to work.
I've scheduled a follow-up email every day until it's fixed.
Next, automated messages and phone calls.
It actually works... š¢
It is rather depressing that human effort can just be reverse-engineered like this.
Itās laughable that the ākiller AI appā that the market was looking for was a secure VM and a few plugins.
Spot on analysis.
Some thoughts on $AMZN/AWS ā
Enjoyed @borrowed_ideas recent AWS piece, and a lot of respect for publishing the model. I think he's a good analyst, which is why it makes my disagreement with him on AWS even more fun.
His base case is that AWS is worth ~$1.3T and AWS's AI capex earns roughly its cost of capital.
I shake out pretty differently... a few thoughts:
First, letās get Amazon Retail out of the way. 2027 consensus retail EBIT (North America + International) is ~$56B. Walmart trades at ~25x CY27 EV/EBIT. Put Walmartās multiple on Amazonās retail earnings and retail is worth somewhere around ~$1.4T.
Iād personally take the over on that. Retail is materially under-earning... burdened by Alexa, supply chain services, the grocery push, Kuiper/Leo (LEO satellites), and an international business thatās still early on its margin trajectory. But for the sake of argument, call it fair.
Back that out of Amazonās ~$2.9T EV and...
~$1.5T is left for two things: AWS and the frontier lab stakes.
Mark the stakes below current headlines (so let's say Anthropic at $1.5T, OpenAI at $1.0T) and Amazon's stakes are worth ~$350B.
That leaves ~$1.15T for AWS, or ~12.5x 2027E consensus AWS EBIT.
Thatās below his $1.3T base case... which already assumes AI CapEx is value-neutral. Put simply, the market is already assuming AWS's AI CapEx creates virtually no value.
MBI's model splits AWS into three demand buckets: (1) the frontier labs, (2) enterprise / āother AIā, and (3) the core non-AI cloud ā and I address each below.
(1) Frontier labs. His model has Anthropic and OpenAI paying ~$8B per GW-year for Trainium and ~$11B for NVIDIA, with lab capacity flat after 2029. At those prices the bucket earns exactly its ~9.6% cost of capital. Trainium sold to labs actually earns a bit less.
Iāll concede that renting GPUs to frontier labs is the lowest-return business of the bunch, with two customers each with enough bargaining power to negotiate hard on price / threaten to insource evenually. However, the hyperscalers are, long term, likely to be the low on the cost curve, for three reasons...
(i) Theyāre the largest NVIDIA buyers in the world, so they get a discount on the most expensive part of the stack
(ii) They have the cheapest power: long-running, pre-existing PPAs, and utilities are inclined to give them the best pricing
(iii) They have a far lower cost of capital than anyone else renting out compute
Some neoclouds have done a better job architecting efficient token-serving systems... But I havenāt heard a compelling argument for why thatās a durable advantage.
Also... power is a binding constraint, and the hyperscalers are locking up the land, power and shell (look at the backlogs & build plans as % of total incremental capacit...). If we stay supply constrained, theyāre incredibly well positioned. And there are plenty of worlds where regulatory pushback limits how much supply comes online, which rewards whoever already owns the supply.
Shorter term... At ~$5.00/hr for B200s and ~$2.50/hr for H200s, my math has GPU rentals earning well north of 50% EBIT margins and ~50% cash-on-cash returns. For now, at least, the most commoditized version of this business isnāt earning anywhere near commodity returns.
And AWS doesnāt just rent compute to the labs. Bedrock (like Foundry at Azure and Googleās "enterprise agent platform") takes a cut of the lab tokens it distributes. It's a capital-light royalty. These are holistic relationships. The hyperscalers lend the labs their balance sheets because they know they can distribute those tokens through the greatest enterprise distribution platform of all time.
Enterprise / āother AIā. MBI prices it off what customers can theoretically afford to pay (less than the frontier labs): "~$20B per GW-year today, falling to ~$14B by 2030 (arguing Azure, GCP, OCI and the neoclouds compete on price). Tis bucket ends up earning ~2pts over its cost of capital.
That framing treats enterprise AI as simply renting raw compute capacity. Some enterprises rent GPUs directly, but most enterprise demand will be inference, and inference is far more likely to be bought as a managed service vs. GPU hours. There are numerous reasons that these business should earn excess returns:
(i) Security, identity and governance are already in place. Who can see what, where, when, and what did they see? Thatās the bedrock (no pun intended) of identity and access management. Most orgs already run it in AWS or Azure... and itās quite painful to rebuild.
(ii) The model weights are hosted inside the hyperscaler, so your data isnāt sent to OpenAI or Anthropic. Plenty of companies still arenāt comfortable with that.
(iii) You burn down existing spend commits instead of onboarding a new vendor, which is a big lift in a large org (people like one throat to choke).
(iv) It fits natively with the rest of your IT environment.
(v) Model-neutral orchestration: routing the right job to the right model at the right time, mix open-weight and frontier models, and avoid going all in on one lab that might fall behind or adopt policies you donāt agree with
(vi) The largest SIs and their quasi-FDEs are building on these platforms.
And the data we have suggests Bedrock, Foundry and Vertex are outgrowing direct lab spend. Starting from first principles (switching costs, barriers to entry, real managed-service benefits), I'd have a hard time arguing this "segment" barely out-earns its cost of capital over time.
Core non-AI cloud. MBI's model takes it from ~$120B of revenue in 2025 to ~$360B in 2035, a ~11-12% CAGR from 2025 (~10.5% from 2026), with growth fading to 7% by the end. This is where almost all of his value sits, because it's the only segment where ROIC materially exceeds WACC.
For starters, Iām not sure you can cleanly separate core cloud from AI anymore.
An agent is simply a model working in a computer/terminal-like environment... therefore it needs a CPU, databases, file systems and storage (read: agent memory), and access to other apps for tool calling. Those are all traditional cloud workloads.
Agentic AI pulls a tremendous amount of traditional infrastructure along with it. Itās why weāre seeing CPU shortages and an acceleration in "non-AI" compute/storage/networking spend.
Iāll cede the point that you can separate the two. But even if you can, that ~10% CAGR number looks quite low.
Last, the frontier lab stakes. The bear world where compute is a commodity and the labs scale so fast they buy their own compute is also a world where the labs are enormous businesses. In that world, the ~$350B worth of stakes should probably double or triple.
Add it all up: lab dedicated compute + Bedrock that earn more than Amazon's cost of capital, enterprise AI that earns a managed-service/PaaS return, a core cloud that grows faster than 10%, and if not... lab stakes worth multiples of today... and I have a hard time seeing $1.3T being a justifiable valuation.
I appreciate the work by MBI. And itās great because it makes the assumptions explicit. I just happen to disagree with several of them.
Thanks for posting @borrowed_ideas.
āA satellite hundreds of kilometers above Earth faces approximately 50 dB more path loss than a terrestrial cell site just a kilometer away. Moving from 2 GHz to 800 MHz recovers only a few dB of that enormous disadvantage.ā
ā CTO T-Mobile
linkedin.com/pulse/spectrum-ā¦
I really enjoyed this semiconductor discussion with @BernsteinRasgon . He makes it extremely accessible to generalists to give a lay of the land.
Imo the most interesting tidbit was his WFE forecasts. ...WOW.... $250bn in 2028 and $300bn in 2030.
youtu.be/-lERPDjpxks?si=DMBDā¦
China's AI Model Company, Zhipu, is down 79% from its highs, but its earnings report is fairly interesting reading.
Trading at 22x EV/Sales.
ea-cdn.eurolandir.com/press-ā¦
I've never done it because it takes too much effort, but today I had my AI bot start emailing @CityofJoburgZA to report broken traffic lights on my way to work.
I've scheduled a follow-up email every day until it's fixed.
Next, automated messages and phone calls.
Always helpful when management adds more fuel to -45% sell-off in a Stock.
This chart suggests there is no end to achieving a return on subsidies per order.
prosus.com/~/media/Files/P/pā¦
The fringe is trying to build this product when it exists already in $RBLX.
šØNEW EXPERIMENT šØ
Playground is an experimental gaming platform that lets you create your own games with zero coding experience. If you can think it, you can play it.
Go to labs.google/playground to learn more! Available to users 18+ in the US.



















