“A product is not ready when its tests pass. It is ready when it has survived contact with a real, cautious, non-technical customer who owes you nothing.”
Tests measure what the builder anticipated; readiness is measured by the stranger who did not read the script.
Post on LinkedIn opens a composer with the line, its explainer and the read-more link, ready to make your own; Post as a quote adds the attribution and this page's link so the card renders. The attribution stays in the article either way.