This talk dives into four critical dimensions — social, economic, political, and military — to uncover the patterns that led to World War I and II. By comparing those pivotal moments with today’s global dynamics, it reveals troubling signs of growing instability. Are we on the brink of a Third World War? Through the lens of history, this analysis offers a powerful reflection on the present — and a warning to not repeat the mistakes of the past.Heni Ozi Cukier, widely known as Professor HOC, is an expert in international politics dedicated to making geopolitics more accessible to the general public. He shares his extensive knowledge — and insights into the challenges and dynamics of the contemporary world — through what has become Brazil’s largest geopolitics YouTube channel: PROFESSOR HOC.He is also behind award-winning documentaries, including Cracolândia.In the United States, he worked at the United Nations Security Council, the Organization of American States (OAS), and the Woodrow Wilson Center think tank.In Brazil, he gained prominence as the founder and coordinator of the postgraduate program in Geopolitics at PUC Paraná, establishing himself as a leading voice in teaching international relations and analyzing global affairs.He holds a degree in Philosophy and Political Science, and a Master’s in Conflict Resolution and International Peace from the renowned American University in Washington, DC. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx