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Technologies 2017, 5(3), 51; doi:10.3390/technologies5030051

A Conceptual Test for Cognitively Coherent Quantum Gravity Models

Department of Pedagogy, Psychology and Philosophy, University of Cagliari, Via Is Mirrionis 1, Cagliari 09123, Italy
Author to whom correspondence should be addressed.
Received: 14 July 2017 / Revised: 3 August 2017 / Accepted: 10 August 2017 / Published: 15 August 2017
(This article belongs to the Special Issue Quantum Gravity Phenomenology and Experimental Implications)
View Full-Text   |   Download PDF [224 KB, uploaded 15 August 2017]


In quantum gravity interpretations, the role of space- and time-related concepts is debated. Some argue that these concepts are not needed to describe physical reality at the Planck scale. Others object that an operational definition of magnitudes cannot get rid of spatiotemporal notions. We propose a “conceptual test” to assess if the mathematical content of a quantum gravity theory refers to some possibly verifiable empirical model. Given that any physical model describes the evolution of a set of measurables, these must be detectable in any empirical interpretation of a physical theory, including quantum gravity ones. Our test ultimately relies on considerations and studies concerning human cognitive limits in the discrimination of magnitudes. View Full-Text
Keywords: epistemology; numerical cognition; theory of spacetime; measurability; quantum gravity; empirical coherence epistemology; numerical cognition; theory of spacetime; measurability; quantum gravity; empirical coherence
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Pinna, S.; Pinna, S. A Conceptual Test for Cognitively Coherent Quantum Gravity Models. Technologies 2017, 5, 51.

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