Why people form delusional beliefs

Beliefs are formed in the first place to enable us to survive in our social environment, to cooperate with each other, and mutually reflect and solve problems. However, beliefs differ across social groups. For example, beliefs about the risk levels of specific activities during the pandemic vary greatly, such as the wearing of masks.

When we consider the social role of beliefs, we can better understand how delusions take shape. A person that has been repeatedly threatened may be wary of people in the future, even if it seems irrational.