Changing your mind about something you believe deeply and truly isn't easy. In fact, it's downright hard to do. Changing your views on something you hold to be an absolute truth, something you feel in your deepest self to be self-evident, something so undeniably and incontrovertibly true there's no contesting it... but then having the fortitude to examine it closely and re-think what you think you know, and consider all the objections as fairly as possible, realizing you do hold biases, and then strive for the best possible objectivity and finally, upon finding ample evidence / reasons to doubt yourself, consider other options / possibilities is not easy. Not by a long shot. What it is, is downright hard. Critical thinking, learning to be skeptical and doubt within reason, setting bias aside, striving for objectivity, all in the pursuit of the truth are skills one must develop them over time. And not everybody posses these skills. Just like not everyone ca...