When we decide on a position, a number of errors in critical thinking begin to kick in: We tend to search for information that reinforces this position. We find it more difficult to imagine alternative positions. We develop a narrative to support our position, which likely includes many logical flaws. And - as I learned during the Summit Against Hate - we can become progressively more extreme in this position. The result is a rigid mentality that leads us to refuse calls to consider others' positions. At worst, it leads to hate, discrimination, and violence against one another.