Cosmic Sociology

Proposed in the The Dark Forest scifi novel by 刘慈欣

Fermi’s Paradox

• Milk way is 13.61 billion years ago
• contains about 100 to 400 billion stars
• 100,000 light-years across, would take 5 million to 50 million years to colonize the galaxy

Related

• Computer simulation of The Dark Forest
• https://bigthink.com/surprising-science/why-we-should-really-stop-trying-to-contact-aliens/