{
  "id": 16667504,
  "title": "Thirty years of confident wrong answers",
  "url": "https://urgent.news/2026/10/26/thirty-years-of-confident-wrong-answers",
  "topic": "tech",
  "section": "Tech",
  "published": "2026-10-26T22:21:00.000Z",
  "source": {
    "name": "Dev.to",
    "slug": "dev-to",
    "url": "https://dev.to/rlmlabs_founder/thirty-years-of-confident-wrong-answers-33il"
  },
  "original_language": "en",
  "account": "For thirty years, the author has witnessed countless instances where individuals confidently provided incorrect explanations for system malfunctions in production environments. As an aerospace engineer, the author learned the importance of margins and failure analysis, which guided their career as a Field CTO. They have often encountered wrong and confident opinions, one of which involved a team that spent two and a half years deploying a database on an internal private cloud. Despite their efforts, the database slowed down every Monday morning. Determined to find the root cause, the author applied first principles thinking and reproduced the error in a test environment. They discovered that the slowness was caused by a storage tiering policy that moved lightly used blocks to SATA storage, causing slower access latencies. By pinning the database VMs to a Fibre Channel storage tier, the issue was resolved. Throughout their career, the author has learned to rely on data, test hypotheses, and avoid making assumptions without evidence. These lessons have been applied to Merlin, both by the author and the AI model, which follows the author's rulebook.",
  "summary": "Thirty years of confident wrong answers I have spent thirty years walking into rooms where a distributed system was misbehaving in production and somebody was certain they knew why. Often they were wrong. Not stupid. Wrong, and confident. I went to school for aerospace engineering. The first lesson of the field is margins: you never trust the nominal number, you trust the measured one, and you…",
  "key_points": [
    "Author witnessed 30 years of confident wrong answers in production environments",
    "Aerospace engineer applied first principles thinking to resolve database slowness",
    "Pinning VMs to Fibre Channel storage resolved Monday morning slowdown"
  ],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}