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“Reality contains not only evidence, but also the means (such as our minds, and our artefacts) of understanding it. There are mathematical symbols in physical reality. The fact that it is we who put them there does not make them any less physical.”

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David Deutsch buch The Fabric of Reality

Quelle: The Fabric of Reality (1997), Ch.3

“Our best theories are not only truer than common sense, they make more sense than common sense…”

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David Deutsch buch The Fabric of Reality

The Fabric of Reality (1997)

“The overwhelming majority of theories are rejected because they contain bad explanations, not because they fail experimental tests.”

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David Deutsch buch The Fabric of Reality

The Fabric of Reality (1997)

“To say that prediction is the purpose of a scientific theory is to confuse means with ends. It is like saying that the purpose of a spaceship is to burn fuel. … Passing experimental tests is only one of many things a theory has to do to achieve the real purpose of science, which is to explain the world.”

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David Deutsch buch The Fabric of Reality

Quelle: The Fabric of Reality (1997), Ch. 1

“The quantum theory of parallel universes is not the problem, it is the solution.”

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David Deutsch buch The Fabric of Reality

Quelle: The Fabric of Reality (1997), Ch. 2
Kontext: The quantum theory of parallel universes is not the problem, it is the solution. It is not some troublesome, optional interpretation emerging from arcane theoretical considerations. It is the explanation—the only one that is tenable—of a remarkable and counter-intuitive reality.

“To say that prediction is the purpose of a scientific theory is to confuse means with ends. It is like saying that the purpose of a spaceship is to burn fuel.”

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David Deutsch buch The Fabric of Reality

Quelle: The Fabric of Reality (1997), Ch. 1
Kontext: To say that prediction is the purpose of a scientific theory is to confuse means with ends. It is like saying that the purpose of a spaceship is to burn fuel. … Passing experimental tests is only one of many things a theory has to do to achieve the real purpose of science, which is to explain the world.

“Quantum computation is … nothing less than a distinctly new way of harnessing nature”

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David Deutsch buch The Fabric of Reality

Quelle: The Fabric of Reality (1997), Ch. 9 : Quantum Computers
Kontext: Quantum computation is … nothing less than a distinctly new way of harnessing nature … It will be the first technology that allows useful tasks to be performed in collaboration between parallel universes, and then sharing the results.

“Since building a universal virtual-reality generator is physically possible, it must actually be built in some universes.”

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David Deutsch buch The Fabric of Reality

Quelle: The Fabric of Reality (1997), Ch. 6

“Mathematical knowledge may, just like our scientific knowledge, be deep and broad, it may be subtle and wonderfully explanatory, it may be uncontroversially accepted; but it cannot be certain.”

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David Deutsch buch The Fabric of Reality

Quelle: The Fabric of Reality (1997), Ch. 10

“The rational thing for a layperson to do is to take seriously the prevailing scientific theory.”

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David Deutsch

TED Talks

“Kuhn's theory suffers from a fatal flaw. It explains the succession from one paradigm to another in sociological or psychological terms, rather than as having primarily to do with the objective merit of the rival explanations. Yet unless one understands science as a quest for explanations, the fact that it does find successive explanations, each objectively better than the last, is inexplicable.”

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David Deutsch buch The Fabric of Reality

Quelle: The Fabric of Reality (1997), Ch. 13; commentary on the ideas of Thomas Kuhn, as presented in the book The Structure of Scientific Revolutions