Apparently, even the mere threat or suggestion of disaster, disorder, epidemic disease, or economic loss fosters a spirit of solidarity. People respond by growing more judgmental in favor of in-group norms, more inclined to follow in-group rules, and more biased against out-group presence. According to other experiments, simply reminding people that they must someday die has the same effect. Thoughts of death, according to a leading “mortality salience” researcher, motivate behaviors that “contribute to nationalism, prejudice, and intergroup aggression, as well as prosocial behavior and
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