Polarization refers to the process in which individuals' attitudes, beliefs, or opinions become more extreme in opposition to one another, often as a result of social influence and group dynamics. This phenomenon can lead to a division in groups, where members align more strongly with their in-group and develop a heightened disdain for out-groups. Understanding polarization is crucial for addressing resistance to persuasion, as it highlights how conflicting perspectives can entrench positions rather than encourage open dialogue.