Explore the fascinating intersection of Big Data, memes, and information diffusion in online social networks, and delve into the complex dynamics of opinion formation in this 29-minute lecture from the Instituto de Física Interdisciplinar y Sistemas Complejos (IFISC). Gain insights into how information spreads across digital platforms, the role of memes in shaping online discourse, and the intricate processes that influence public opinion in the age of social media. Discover the latest research and methodologies used to analyze these phenomena, and understand the implications of these dynamics for society, politics, and communication in the digital era.