TEDxSanDiego brings together a collection of innovators, explorers, visionaries, teachers and learners. Our vision is to be a forum that encourages and facilitates the unleashing of ideas that have the power to change our world. Chain Re*ac*tion, the theme of this year’s TEDx event, explores the ways in which a person, idea or technology is able to affect the lives of many, thus changing the fabric of our society. In addition to 15 amazing speakers and performers who will take the stage at Copley Symphony Hall, TEDxSanDiego is shutting down B Street (between 7th & 8th Avenues) to create Innovation Alley—featuring 20 of San Diego’s most innovative entrepreneurs. More information and online registration is here.