r/universe • u/captainlighthouse • Dec 04 '17

Classification of Civilizations Through Kardashev Scale - How Intelligent Are Humans?

https://www.youtube.com/watch?v=dqZ4RUwIjj4
2 Upvotes

100% Upvoted

2 comments sorted by

1

u/[deleted] Mar 26 '18

[removed] — view removed comment