TED-Ed: How do you know you exist? - James Zucker

The video explores the philosophical question of existence, inspired by René Descartes' 'Meditations on First Philosophy.' It discusses the reliability of sensory perceptions, the nature of dreams, and the possibility of an evil genius deceiving us about reality. Ultimately, it concludes with Descartes' assertion 'I think, therefore I am,' affirming the existence of a thinking being.

In what way does the text suggest that dreams can challenge our perception of reality?

What does the phrase "I think, therefore I am" imply about existence and consciousness?