“One Out of Three Checks Matched. The AI Authorised the Stop Anyway.” — Matt Sheehan, LinkedIn, September 21, 2026. A licence-plate match felt conclusive enough to authorise an armed stop on a family. It wasn’t — the same failure this newsletter is making about evidence, playing out as a decision-boundary problem instead. Read it here
“You’re Not Doing Customer Validation. Stop Calling It That.” — Paul O’Brien, June 30, 2026. Draws the line between customer validation and market validation, and lands the point in one sentence: “‘Sounds interesting’ is the most useless signal in the history of entrepreneurship.” Read it here
“The Validation Trap: Why Early Positive Feedback Kills More Startups Than It Saves.” — Medium, April 10, 2026. A sharper edge on the same failure: founders confirm desire and stop there, never testing whether the thing can actually survive contact with the harder constraints. Read it here
“Focus On What Customers Do, Not What They Say.” — Startup Strategies (Substack). The plainest version of the same argument: people are nice, and being nice isn’t evidence. Paying is. Read it here
This round-up runs every week alongside Decision Layer Weekly — sources on AI decision authority that keep independently landing in the same place. Get it in your inbox → https://genaimarketers.kit.com/03d60cdef4