Richard Feynman sobre OVNIs

Algumas palavras brilhantes do génio Richard Feynman, onde entre outras coisas eles explica que a ciência é feita de probabilidades e não impossibilidades (e devido a isto vivemos no século XXI rodeados de ciência), e onde argumenta que os OVNIs são imaginados pela mente humana:

“I had a conversation some years ago with a layman about flying saucers — because I am scientific I know all about flying saucers!
I said “I don’t think there are flying saucers’.
So my antagonist said, “Is it impossible that there are flying saucers? Can you prove that it’s impossible?”
“No”, I said, “I can’t prove it’s impossible. It’s just very unlikely”.
At that he said, “You are very unscientific. If you can’t prove it impossible then how can you say that it’s unlikely?”
But that is the way that is scientific. It is scientific only to say what is more likely and what less likely, and not to be proving all the time the possible and impossible.
To define what I mean, I might have said to him,
“Listen, I mean that from my knowledge of the world that I see around me, I think that it is much more likely that the reports of flying saucers are the results of the known irrational characteristics of terrestrial intelligence than of the unknown rational efforts of extra-terrestrial intelligence.”
It is just more likely. That is all.”

Outra quote do Richard Feynman, em The Meaning of it All:
“Anyway, I have to argue about flying saucers on the beach with people, you know. And I was interested in this: they keep arguing that it is possible. And that’s true. It is possible. They do not appreciate that the problem is not to demonstrate whether it’s possible or not but whether it’s going on or not.”

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