/ premium · decision height on substack

Decision Height: premium essays from inside the lab.

Long-form writing on AI strategy, frontier-lab observations, and the mental models I borrow from the flight deck. Published on Substack — not cross-posted to LinkedIn.

Just shipped · Interactive tool

Plane Math — does the speed pay for itself?

An interactive cost-of-ownership model for the general-aviation fleet. Set how you fly, compare any two aircraft head-to-head, and find the planes nobody beats on both cost and speed.

Open Plane Math →
Premium Essay · Coming soon

The first long-form essay is in the run-up.

Deep dives on AI strategy, judgment, and the view from the flight deck — the long-form that doesn't fit in a post. Subscribe, and the first one lands in your inbox.

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/ recent — on linkedin
Strategy Apr 2026

Most companies don't need an AI strategy.

IBM, Zillow, Amazon didn't have technology failures — they had decision failures with expensive models. If you can't name the decision your model improves, you have a science experiment with a budget.

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2 min read
Craft Apr 2026

I forfeited my CPA license. Now I build foundational AI.

Audits run on zero trust — every number traces to a receipt. That one instinct catches more bugs than any unit test I've written. Your weird background is the lens your team is missing.

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3 min read
Career Mar 2026
★ Top post · 47K views · 189 reactions

My career path makes no sense on paper.

Pilot → CPA → EY → Uber → Meta. It looks random — but it's the same muscle the whole way: high-stakes calls on incomplete information, which is exactly what AI needs more of right now.

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1 min read
Systems Mar 2026

What is vLLM?

An open-source project quietly cut LLM serving costs ~20x — not with a better demo, but with a smarter memory allocator. The boring infrastructure is what decides who can afford to compete.

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3 min read
Building Mar 2026

AI demo vs. AI in production.

It's the gap between driving in a parking lot and driving in Hanoi. The demo works because you control everything; production works because you anticipated what you can't. Most companies are still in the parking lot.

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1 min read
Strategy Mar 2026

The AI consulting bill is coming due.

Thousands of agents, millions in fees — and now the question is "did it make money?" Deploying models stopped being the edge. Tying them to decisions is the whole game.

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2 min read
/ looking for free notes?

Substack is for the long stuff. The shorter takes live elsewhere.

I post free observations, mini-essays, and field notes on LinkedIn. Premium long-form lives only on Substack — by design.