Over the past 10 years, Social Impact Exchange (SIE) has hosted the nation’s only annual conference exclusively focused on scaling social impact. The Exchange 2020: Unifying Leadership was held virtually on September 23-24.  Cornerstone CEO Erika Karp delivered a “lightning” keynote addressing the need for a “just transition” from the current dysfunction in our systems to a form of capitalism that focuses on long-term sustainability of all forms of capital, including human and natural capital.