PA - Global Macro

PA - Global Macro

When Machines Replace the Thinkers

Four frameworks, a physical constraint model, and the trades that follow

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Paper Alfa
Apr 20, 2026
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While keeping an eye on the back-and-forth in the Iran conflict, I have been doing a lot of reading lately. Several serious pieces of research have landed on my desk over the past few weeks — scenario analysis, real-money portfolio positioning, labour market history, and institutional counterarguments — and, taken together, they constitute something closer to a complete map of the AI disruption terrain than any single piece alone. The disagreements between them are as instructive as the convergences.

This piece attempts to synthesise what I’ve read, what I think is right, where I think the gaps are, and what it all means for positioning. I examine four distinct frameworks for thinking about AI’s impact on labour markets, financial stability, and asset prices — including a private credit mechanism that I believe is the most underappreciated systemic risk in the current market. The ideas are what matter, not who wrote them.

But I also wanted to go further than synthesis. One question kept nagging at me: does the physical world actually impose hard constraints on how quickly this disruption can happen, and what does the true economics of AI deployment look like once you strip away the venture-subsidised consumer pricing? Nobody I read had modelled this rigorously. So I built one. The results surprised me — the cost constraint has already collapsed, but the capacity constraint buys more time than the bears assume and considerably less than the bulls require. The critical window is 2027, and it is not far away.

The Iran conflict has added a dimension that sharpens several of the conclusions. The oil shock is compounding the consumer fragility the piece identifies; the Fed leadership transition is adding institutional uncertainty at the worst possible moment; and — perhaps most importantly — the energy costs of running the very infrastructure that enables AI displacement have risen structurally. The deflationary endgame runs through an inflationary phase first. That sequencing matters for every trade in the book.

Let’s dig in.

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