We only have to look at ourselves to see how intelligent life might develop into something we wouldn't want to meet.
If aliens visit us, the outcome would be much as when Columbus landed in America, which didn't turn out well for the Native Americans.
Interpretation
What this quote means
Hawking suggests that contact with extraterrestrial beings could lead to negative consequences for humanity, similar to the impact of European colonization.
In this quote, Stephen Hawking draws a parallel between the potential arrival of aliens on Earth and the historical impact of Columbus's arrival in the Americas on indigenous populations. He warns that just as the Native Americans faced devastating consequences from colonization—including loss of land, culture, and lives—humanity may also suffer if we encounter more advanced civilizations. This thought-provoking statement invites reflection on the ethical implications of seeking contact with extraterrestrial life and the responsibilities we hold towards our own species and others.
Themes
In practice
Example use cases
During a science discussion, this quote could be referenced to spark debate about the morality of space exploration.
More from Stephen Hawking
All quotes →I regard the brain as a computer which will stop working when its components fail. There is no heaven or afterlife for broken down computers; that is a fairy story for people afraid of the dark.
It surprises me how disinterested we are today about things like physics, space, the universe and philosophy of our existence, our purpose, our final destination. Its a crazy world out there. Be curious.
I was not a good student. I did not spend much time at college; I was too busy enjoying myself.
The world has changed far more in the past 100 years than in any other century in history. The reason is not political or economic but technological-technologies that flowed directly from advances in basic science. Clearly, no scientist better represents those advances than Albert Einstein: TIME's Person of the Century.
In my opinion, there is no aspect of reality beyond the reach of the human mind.
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I feel impelled to speak today in a language that in a sense is new-one which I, who have spent so much of my life in the military profession, would have preferred never to use. That new language is the language of atomic warfare.
Why is it that all men who are outstanding in philosophy, poetry or the arts are melancholic?
Doesn't make any difference who we are or what we are, there's always somebody to look down on.
...logical validity is not a guarantee of truth.