Science has a structure that is self-correcting. By making testable predictions, scientists are able to see when their theories are going wrong, which, in turn, hands them the impetus to create new theories. But if scientists as a community ignored inconvenient evidence, or spun it, or covered it up, they would achieve nothing. Science is not just about a method, then; it is also about a mindset. At its best, it is driven forward by a restless spirit, an intellectual courage, a willingness to face up to failures and to be honest about key data, even when it undermines cherished beliefs. It is
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