This video features a lecture by José Carlos Ruiz, a philosophy professor, on the art of thinking in the 21st century. He uses the myth of Theseus and Aegeus to illustrate the complexities of identity formation in a rapidly changing digital age, contrasting "real" and "virtual" identities and the challenges of critical thinking in a world saturated with information and entertainment. The lecture also touches upon the importance of cultivating language, prioritizing real-world experiences, and navigating the complexities of social media.