„"I can hardly believe we are talking about a possibility so inconceivable as that other universes exist—and that the Geometers originate there!"
In this, Zh'vaern seemed to speak for the entire table.
Except for Jad. "The words fail. There is one universe, by the definition of universe. It is not the cosmos we see through our eyes and our telescopes—that is but a single Narrative, a thread winding through a Hemn space shared by many other Narratives besides ours. Each Narrative looks like a cosmos alone, to any consciousness that partakes of it. The Geometers came from other Narratives—until they came here, and joined ours."
Having dropped this bomb, Fraa Jad excused himself, and went to the toilet.
"What on earth is he going on about?" Fraa Lodoghir demanded. "It sounded like literary criticism!"“

—  Neal Stephenson, Part 10, "Messal"
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Neal Stephenson
auteur de romans de science-fiction 1959
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„Because our entire universe is made up of consciousness, we never really experience the universe directly we just experience our consciousness of the universe, our perception of it, so right, our only universe is perception.“

—  Alan Moore English writer primarily known for his work in comic books 1953
Context: Yeah, our view of reality, the one we conventionally take, is one among many. It’s pretty much a fact that our entire universe is a mental construct. We don’t actually deal with reality directly. We simply compose a picture of reality from what’s going on in our retinas, in the timpani of our ears, and in our nerve endings. We perceive our own perception, and that perception is to us the entirety of the universe. I believe magic is, on one level, the willful attempt to alter those perceptions. Using your metaphor of an aperture, you would be widening that window or changing the angle consciously, and seeing what new vistas it affords you.

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„We know by actual observation only a comparatively small part of the whole universe. I will call this "our neighborhood." Even within the confines of this province our knowledge decreases very rapidly as we get away from our own particular position in space and time. It is only within the solar system that our empirical knowledge extends to the second order of small quantities (and that only for g44 and not for the other gαβ), the first order corresponding to about 10-8. How the gαβ outside our neighborhood are, we do not know, and how they are at infinity of space or time we shall never know. Infinity is not a physical but a mathematical concept, introduced to make our equations more symmetrical and elegant. From the physical point of view everything that is outside our neighborhood is pure extrapolation, and we are entirely free to make this extrapolation as we please to suit our philosophical or aesthetical predilections—or prejudices. It is true that some of these prejudices are so deeply rooted that we can hardly avoid believing them to be above any possible suspicion of doubt, but this belief is not founded on any physical basis. One of these convictions, on which extrapolation is naturally based, is that the particular part of the universe where we happen to be, is in no way exceptional or privileged; in other words, that the universe, when considered on a large enough scale, is isotropic and homogeneous.“

—  Willem de Sitter Dutch cosmologist 1872 - 1934

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„If we are alone in the Universe, it sure seems like an awful waste of space.“

—  Carl Sagan, Contact
This is a paraphrase of Sagan quoting Thomas Carlyle: "A sad spectacle. If they be inhabited, what a scope for misery and folly. If they be not inhabited, what a waste of space." Sagan delivered this quote during the symposium on "Life Beyond Earth and the Mind of Man", held at Boston University (20 November 1972), published in Life Beyond Earth and the Mind of Man (1973) edited by Richard Berendzen; Life Beyond Earth and the Mind of Man (1975) National Archives video http://www.youtube.com/watch?v=cQeOp7a8QMI

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