Mistakes Were Made (But Not by Me): Why We Justify Foolish Beliefs, Bad Decisions, and Hurtful Acts

by Carol Tavris

This frequently replicated finding explains why it is so difficult for scientists and health experts to persuade people who are ideologically or politically committed to a belief—such as “climate change is a hoax”—to change their minds even when overwhelming evidence dictates that they should. People who receive disconfirming or otherwise unwelcome information often do not simply resist it; they may come to support their original (wrong) opinion even more strongly—a backfire effect. Once we are invested in a belief and have justified its wisdom, changing our minds is literally hard work. It’s much easier to slot that new evidence into an existing framework and do the mental justification to keep it there than it is to change the framework.