Aliens Quote by Neil deGrasse Tyson
“Perhaps we've never been visited by aliens because they have looked upon Earth and decided there's no sign of intelligent life.”
About This Quote
Source Interview: The Cosmic Perspective, 2015
Aliens may avoid Earth because they perceive no clear evidence of intelligence, suggesting our signals are insufficient or misunderstood.
In simple terms: Aliens think Earth isn’t intelligent.
Key Takeaway
Improve our signals of intelligence.
Themes
space
communication
civilization
humility
exploration
Mood
curious
skeptical
Type
speculative
inspirational
When to use this quote
- broadcasting
- space missions
- public outreach
Key Concepts
astrobiology
SETI
signal theory
Questions to Reflect On
- What would count as clear intelligence?
- How can we better signal our presence?
A Different Perspective
Assumes alien motives are similar to ours.
![“I have been privileged to be briefed and to know that we have been visited [by aliens]. I do not have first hand experience in this regard, but I have been on investigating teams and I have been briefed by insiders who do know.” quote by Edgar Mitchell](https://sms4smile.com/quotes/img-quotes/c8f/edgar-mitchell-6104_aliens_i-have-been-privileged-to-be-briefed-and_2411535.jpg)
![“When all the other animals, downcast looked upon the earth, he [Prometheus] gave a face raised on high to man, and commanded him to see the sky and raise his high eyes to the stars.” quote by Anonymous](https://sms4smile.com/quotes/img-quotes/e2c/anonymous-1_animal_when-all-the-other-animals-downcast-look_2134257.jpg)
![“They [scientists of centuries past] call on God only from the lonely and precarious edge of incomprehension. Where they feel certain about their explanations, however, God gets hardly a mention.” quote by Neil deGrasse Tyson](https://sms4smile.com/quotes/img-quotes/0b0/neil-degrasse-tyson-143_century_they-scientists-of-centuries-past-call-o_12921.jpg)
