"Today, Hungary is in the gray zone between a dictatorship and a democracy," says activist Tessza Udvarhelyi. "This did not happen overnight." In a rousing talk, she reminds us just how close any country can come to authoritarianism — and offers on-the-ground lessons for how to keep democracy alive through focus, determination and imagination. (Followed by a brief Q&A with TED curator Cloe Shasha Brooks)