Presentation by Dr. Jon Peters. It often happens that we hear or read something about scientific origins that is so erroneous that it takes us by surprise. Do we remain silent or do we speak up? If we decide to challenge a statement from a creationist, we should ask ourselves certain questions first. What are our goals? Are they different from the other side? How effective will we be? Are there any dangers? We will discuss motivated reasoning, confirmation bias, and how presenting evidence can backfire against you. Dr.