Proof
Mark StouseRead the latest about the intersection of AI, causal proof of business impact, fiduciary duty, and risk, among other things.
| Platform |  | Pricing | Freemium | Publishes | Twice weekly |
|---|---|---|---|---|---|
| Issues | 127 | Founded | 2 years ago | Last Issue | 9 days ago |
| Active | |||||
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markstouse.substack.comLatest Issues
The Biggest Thing I’ve Learned
It’s a daunting question. Maybe impossible to answer completely. Because I think what we learn is always a numerator, a characteristic, spotlighted by circumstances we didn’t choose. The right lesson at the right moment, forced on you by a...
The Fiduciary Failure Hidden in Plain Sight on Every University Campus
A note before we begin: I’m not really a “joiner.” In my life, I haven’t often “drunk the Kool-Aid,” and now I don’t at all. I was not a member of a fraternity in college, though in many respects I might as well have been.
When I was at B...
Four Years of Evidence: Why No Plan That Ignores The 10 Forces Can Be Investable
Part 1 of this two-part series cataloged ten forces that have structurally changed the business environment since mid-2022. If you recognized your own situation in that catalog, the recognition itself is not the problem. Most senior leaders...
The Ground Shifted
Most business teams are not operating in today’s market. They are operating in a model of it — one built from experience, benchmarks, and intuitions accumulated over the decade before mid-2022. That model was accurate enough, for long enoug...
The Prompt Architecture Behind 3 Years of Serious Collaboration with GenAI
What follows is my current prompt architecture for AI collaboration, revised October 19, 2026. I’m publishing it in full because the most useful thing I can do for people doing serious sustained work with AI is show them what the infrastruc...
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| Subscribers | Engagement | 72 | Monthly Web Visits | ||
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The writers behind this newsletter.
A human Venn Diagram of different roles and perspectives, now an AI CEO of a different stripe
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