Forgiveness is an evolutionary phenomenon necessary for building and sustaining a community. Minimizing conflict preserves cooperation so that groups can achieve goals. Noticeably, people practice forgiveness more readily among loved ones and withhold forgiveness from people they have no desire to be in relationships with. Family members and people who share a loving relationship are drawn to share physical and emotional space. Forgiveness allows them to do so in the face of harm. Forgiveness has evolutionary priorities. Misbehaved children, neglectful parents, careless spouses, and demanding grandparents are frequent beneficiaries of forgiveness. Because forgiveness is extended, children can be raised in low-conflict environments, weddings can be executed smoothly, and family reunions can be a joyful experience. Perhaps this evolutionary pull toward forgiveness makes unforgiveness seem radical.