This document summarizes a session titled "Hindsight is 20/20" presented by four experienced charter school authorizers. The presenters discussed lessons they have learned over their combined 40 years in authorizing charter schools. Key topics of discussion included the importance of communication and relationship building with schools, celebrating school successes, engaging with various stakeholders, and providing support to struggling schools while also making difficult closure decisions when needed. The presenters concluded by emphasizing the importance of authorizers maintaining good mental health and life balance to be able to perform their challenging roles effectively.