Self-deception functions as an adaptive strategy to conceal one's own deceit from others by hiding it from oneself, thereby preventing the leakage of behavioral cues associated with lying.

“the best way to hide it from others is first of all to hide it from yourself and then you don't give off any of the cues that are associated with deception”

Self-deception is often a passive process where individuals avoid investigating evidence that contradicts their pre-existing beliefs to prevent the mental and emotional effort required to restructure

“for her to transform that into something differentiated enough to alter her fantasy would take a tremendous amount of effort and so she can just not do that and that's passive self-deception which i think is the most common self-deception”

Self-deception is a strategic mechanism used to avoid the risks of lying by making one's own false claims appear authentic.

“one way of limiting this cost or one way of not being found out is actually to believe my own stories”