The Great Filter: Humanity's Final Exam

Summary by Krater

This video explores the Drake Equation, the Fermi Paradox, and the Great Filter theory as possible explanations for why humanity has not yet found evidence of alien civilizations.

From the video

Answers: Why haven't we found evidence of alien civilizations yet?

• Drake equation
• Fermi paradox
• Great filter theory
• Extraterrestrial intelligence
• Coronal mass ejections
• Chelyabinsk meteor

What it concludes

• The Fermi Paradox highlights the contradiction between the high probability of extraterrestrial civilizations and the lack of observational evidence.
• The Great Filter theory suggests that complex barriers prevent civilizations from achieving space travel or long-term survival, explaining why we have not found alien life.
• Extreme cosmic events like solar storms and asteroid impacts pose severe threats to planetary civilizations and could act as filters.
• Earth may have already passed the Great Filter, making it one of the few surviving civilizations in the galaxy.