[ Confirmed ]

A known bias is the confirmation trap bias:  seeking information that confirms what we know, rather than challenge it with contradictory information.

In pursuing confirming evidence that our past decisions were correct, or the consequences of a current decision will be positive, that excludes a wealth of information.

The information gained from seeking contradictions is valuable, but seeking it is definitely not easy.  But it’s not possible to be sure something is true without also checking that it might not be.  Like the scientific method:  try to prove a hypothesis (or decision) is wrong, and see what information is learned.