Each year, the world’s most influential social entrepreneurs, key thought leaders, and strategic partners gather at the University of Oxford’s Saïd Business School to exchange ideas and activate solutions to global challenges. This year's theme "Accelerating Possibility" features speakers including activists Ai-jen Poo and Kumi Naidoo, futurist Anab Jain, journalist Christiane Amanpour, social-justice philanthropy expert Edgar Villanueva, and award-winning actor Chiwetel Ejiofor.