Most of our certainties are based less on evidence than on repetition. We accept as true what we have heard many times or what fits our experience without stopping to question how we actually came to believe it. The right question is not only whether something is true, but how I came to believe it. That review changes the quality of thinking. It forces us to separate data, interpretations, and assumptions. It also reveals when we are defending an idea more out of habit than out of proof.

Every belief should include a condition for revision. Asking what evidence would change my mind does not weaken an idea, it strengthens it if it survives the test. The problem is that we often avoid this exercise because it threatens our internal coherence. In addition, there is an unavoidable limit, we do not know what we do not know. That blind spot is constant. For this reason, knowledge is not a fixed state, but a continuous process of adjustment between what we believe, what we observe, and what we have not yet been able to see.