Apparently it‟s statesmanlike to stand firm and not change your mind. It‟s also idiotic to ignore new evidence and refuse to admit you may have been wrong with your first conclusion.
I remember when John Kerry ran against George Bush for President The Republicans discovered Kerry had changed his stance on the war in Iraq in light of new information that had been made available.
He was pilloried by the Republicans for being a flip-flopper rather than commended for being honest enough to accept he was wrong.
Your brain actually hates to be wrong and it sets off a series of chemical responses that don‟t feel good at all.
It takes courage to ignore those feelings and admit your mistake. We all get stuff wrong, just admit it when you do and move on with your newfound insight.