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  1. Reiner Hedrich, String Theory – Nomological Unification and the Epicycles of the Quantum Field Theory Paradigm.
    String Theory is the result of the conjunction of three conceptually independent elements: (i) the metaphysical idea of a nomological unity of the forces, (ii) the model-theoretical paradigm of Quantum Field Theory, and (iii) the conflict resulting from classical gravity in a quantum world - the motivational starting point of the search for a theory of Quantum Gravity. String Theory is sometimes assumed to solve this conflict: by means of an application of the (only slightly extended) model-theoretical apparatus of (perturbative) (...)
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  2. Reiner Hedrich, Quantum Gravity: Has Spacetime Quantum Properties?
    The conceptual incompatibility between General Relativity and Quantum Mechanics is generally seen as a sufficient motivation for the development of a theory of Quantum Gravity. If - so a typical argumentation - Quantum Mechanics gives a universally valid basis for the description of the dynamical behavior of all natural systems, then the gravitational field should have quantum properties, like all other fundamental interaction fields. And, if General Relativity can be seen as an adequate description of the classical aspects of gravity (...)
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  3. Reiner Hedrich, Quantum Gravity: Motivations and Alternatives.
    The mutual conceptual incompatibility between General Relativity and Quantum Mechanics / Quantum Field Theory is generally seen as the most essential motivation for the development of a theory of Quantum Gravity. It leads to the insight that, if gravity is a fundamental interaction and Quantum Mechanics is universally valid, the gravitational field will have to be quantized, not at least because of the inconsistency of semi-classical theories of gravity. The objective of a theory of Quantum Gravity would then be to (...)
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  4. Reiner Hedrich (2007). The Internal and External Problems of String Theory: A Philosophical View. [REVIEW] Journal for General Philosophy of Science 38 (2):261 - 278.
    String theory is at the moment the only advanced approach to a unification of all interactions, including gravity. But, in spite of the more than 30 years of its existence, it does not make any empirically testable predictions, and it is completely unknown which physically interpretable principles could form the basis of string theory. At the moment, “string theory” is no theory at all, but rather a labyrinthic structure of mathematical procedures and intuitions. The only motivations for string theory consist (...)
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  5. Reiner Hedrich, String Theory - From Physics to Metaphysics.
    Currently, string theory represents the only advanced approach to a unification of all interactions, including gravity. In spite of the more than thirty years of its existence, the sequence of metamorphosis it ran through, and the ever more increasing number of involved physicists, until now, it did not make any empirically testable predictions. Because there are no empirical data incompatible with the quantum field theoretical standard model of elementary particle physics and with general relativity, the only motivations for string theory (...)
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  6. Reiner Hedrich (2005). Holger Lyre: Lokale Symmetrien Und Wirklichkeit. Eine Naturphilosophische Studie Über Eichtheorien Und Strukturenrealismus, Paderborn, Mentis, 2004, 236 S., Euro 32,–. [REVIEW] Journal for General Philosophy of Science 36 (2):417-423.
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  7. Reiner Hedrich (2005). Holger Lyre:, Paderborn, Mentis, 2004, 236 S., Euro 32,–. Journal for General Philosophy of Science 36 (2):417-423.
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  8. Reiner Hedrich (2003). Book Review: Wilfried Kuhn: Ideengeschichte der Physik – Eine Analyse der Entwicklung der Physik Im Historischen Kontext. [REVIEW] Journal for General Philosophy of Science 34 (1):159-163.
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  9. Reiner Hedrich (2002). Anforderungen an Eine Physikalische Fundamentaltheorie. Journal for General Philosophy of Science 33 (1):23-60.
    Requirements for a Fundamental Physical Theory. The search for a so-called ‘Theory of Everything’ which should lead to the unification of all fundamental forces is seen, at present, as a matter of priority within theoretical high-energy physics. Some physicist identify this Theory of Everything today with aspecific type of superstring theory or its intended conceptual continuation, called M-Theory. The objective of this article is the discussion of the requirements a fundamental physical theory has to comply with. This question can only (...)
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  10. Reiner Hedrich, Superstring Theory and Empirical Testability.
    The quest for an all-encompassing theory, finally intended to give a solution to the problem of the unification of all natural forces, is seen today as one of the most important objectives of theoretical high-energy physics. This so-called 'Theory of Everything' is, actually, identified by some theoretical physicists with superstring theory. But superstring theory is in a crucial way incomplete. And, above all, it has fundamental problems with empirical testability – problems that make questionable its status as a physical theory (...)
     
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  11. Reiner Hedrich (2002). Zelluläre Automaten: Diskrete Modelle der Welt? Philosophia Naturalis 39 (1):1-24.
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  12. Reiner Hedrich (2001). The Naturalization of Epistemology and the Neurosciences. Epistemologia 24 (2):271-300.
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  13. Reiner Hedrich (1999). Le scienze della complessità: una rivoluzione kuhniana. Epistemologia 1.
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  14. Reiner Hedrich (1999). The Sciences of Complexity: A Kuhnian Revolution in Science? Epistemologia 22 (2):293-320.
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  15. Roberto Giuntini & Reiner Hedrich (1995). Quantum Logic and Hidden Variables. Journal for General Philosophy of Science 26 (2):345-348.
     
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  16. Reiner Hedrich, Ingrid Weber, Friedrich Rapp & Carsten Klein (1995). Book Reviews. [REVIEW] Journal for General Philosophy of Science 26 (2).
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