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Rough Notes, Mar 5, 2026: AI and Productivity, Bombing Data Centers, Revenue Rakes, etc.

A digest of recent Rough Notes

Here are recent rough notes from the site.

1.
US productivity growth driven by AI infrastructure investment

US productivity growth is on a flyer, back to levels last seen more than a decade ago. Could it be AI, as some are arguing? Almost certainly not—too soon.

My guesses:
- Outsized AI infrastructure investment skewing numbers
- Capital deepening, and
- Cyclical labor effects post-Covid

Mar 5 · Permalink →
2.
Revenue-sharing models across Substack Spotify YouTube platforms

Rev share / rake by content platform, from Substack, to Spotify, to YouTube. I got thinking about this in scanning a BBC filing mentioning its unease with putting more content on YouTube, given that its poor revenue sharing.

https://www.bbc.co.uk/aboutthebbc/documents/bbc-response-to-government-charter-review-green-paper.pdf

Mar 5 · Permalink →
3.
Data Centers Drive Geopolitical Military Strategy

I mentioned this in an AWS context earlier in the week, and it should come as no surprise given the ardor with which defence departments worldwide have embraced AI: data centers are now a geopolitically and militarily strategic asset.

Mar 5 · Permalink →
4.
AI Tech Lending Myths Debunked Today

Today in AI/tech lending related things that are almost certainly not true:

Mar 4 · Permalink →