once you commit to something, your brain starts the magical process of rationalization, convincing you that you made a good choice. You retroactively ascribe more positive traits to things you chose and more negative traits to things you didn’t. The students who had to choose a final photo committed to their picture right away, immediately launching the rationalization process. Those who had the chance to change their selection spent the week going back and forth, weighing the different options. This led to feelings of doubt, so that even when they stuck with their original photo, they felt
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