https://mikeswordy.com/ Data strategy, analytics engineering, BI, data science, and the practical work of turning data into better decisions. https://mikeswordy.com/essays/modelling-the-wrong-thing/ https://mikeswordy.com/essays/modelling-the-wrong-thing/ Mon, 13 Jul 2026 15:44:08 +0000 You're asked to investigate one number, then disappear into a rabbit hole of lineage and SQL you didn't write. Inherited models look tidy from far away and tangled up close. A metric disagrees with another system; you tr...