Some answers become outdated while the questions remain important.

Answers date. What was known about health, work, or how the world functions gets revised, while the underlying question stays exactly as important as it was. Confusing the two leaves you holding a superseded answer with the confidence appropriate to the question.

With anything you learned a long time ago and have not revisited, ask whether the answer might have moved. Especially in fast-changing areas. Keep the question active and treat the answer as current best understanding rather than as settled. That posture costs nothing and prevents a specific kind of long-term error.