It happens to everyone. Sometimes we’re just wrong. It doesn’t matter how long we’ve held a certain opinion or belief, when presented with evidence that refutes what we have always considered as fact, we should accept it, humbly, and move on. That’s the way science works. Over years, even decades, new information is developed that gives us a different perspective on what had been considered settled in the past. It’s a good thing, in that we expand and improve our knowledge in some area of science. The same should be applied to our knowedge in other subhects as well. We shouldn’t be cowed by popular opinion, or that which appears to be politically correct views.