The Hole ArgumentThis paper reviews the hole argument as an argument against spacetime substantivalism. After a careful presentation of the argument itself I review possible responses.Oliver Pooley·Sep 21, 2020SaveLearn
Eternalism and Perspectival Realism about the 'Now'Eternalism is the view that all times are equally real. The relativity of simultaneity in special relativity backs this up. There is no cosmically extended, self-existing 'now'. This leads to a…Matias Slavov·Sep 21, 2020SaveLearn
Wilhelm Weber: On the Energy of Interaction (translated and edited by A. K. T. Assis)Editor's Note: An English translation of Wilhelm Weber's 1878 paper "Ueber die Energie der Wechselwirkung", [Web78b]. This work is an excerpt from Weber's seventh major Memoir on Electrodynamic…A. K. T. Assis·Sep 19, 2020SaveLearn
Determinism and general relativityWe investigate the fate of determinism in general relativity (GR), comparing the philosopher's account with the physicist's well-posed initial value formulations. The fate of determinism is…Chris Smeenk, Christian Wuthrich·Sep 16, 2020SaveLearn
La pol\'emica del multiversoThis paper offers a synthesis of the positions in the literature regarding controversies about the multiverse. After reviewing some simple elements of modern cosmology and its observational…Alejandro Gangui·Sep 14, 2020SaveLearn
Kant and Hegel in PhysicsKant and Hegel are among the philosophers who are guiding the way in which we reason these days. It is thus of interest to see how physical theories have been developed along the line of Kant and…Y. S. Kim·Sep 14, 2020SaveLearn
David Olive: his life and workDavid Olive, who died in Barton, Cambridgeshire, on 7 November 2012, aged 75, was a theoretical physicist who made seminal contributions to the development of string theory and to our understanding…Edward Corrigan, Peter Goddard·Sep 12, 2020SaveLearn
The Beginning of the Nuclear AgeThe article below is based on lectures delivered to new students remotely in the course of orientation. It presents the quantum theory tree from its inception a century ago till today. The main focus…M. Shifman·Sep 10, 2020SaveLearn
A history of the Magellanic Clouds and the European exploration of the Southern HemisphereThe Magellanic Clouds were known before Magellan's voyage exactly 500 years ago, and were not given that name by Magellan himself or his chronicler Antonio Pigafetta. They were, of course, already…Michel Dennefeld·Sep 10, 2020SaveLearn
Physical grounds for causal perspectivalismWe ground the asymmetry of causal relations in the internal physical states of a special kind of open and irreversible physical system, a causal agent. A causal agent is an autonomous physical…G. J. Milburn, S. Shrapnel, P. W. Evans·Sep 9, 2020SaveLearn
Cartography of the space of theories: an interpretational chart for fields that are both (dark) matter and spacetimeThis paper pushes back against the Democritean-Newtonian tradition of assuming a strict conceptual dichotomy between spacetime and matter. Our approach proceeds via the more narrow distinction…Niels C. M. Martens, Dennis Lehmkuhl·Sep 8, 2020SaveLearn
Dark Matter = Modified Gravity? Scrutinising the spacetime-matter distinction through the modified gravity/ dark matter lensThis paper scrutinises the tenability of a strict conceptual distinction between space(time) and matter via the lens of the debate between modified gravity and dark matter. In particular, we consider…Niels C. M. Martens, Dennis Lehmkuhl·Sep 8, 2020SaveLearn
One time, two times, or no time?Contemporary research programs in fundamental physics appear to suggest that there could be two (physical) times---or none at all. This essay articulates these possibilities in the context of quantum…Christian Wuthrich·Sep 7, 2020SaveLearn
Out of Nowhere: The emergence of spacetime from causal setsThis is a chapter of the planned monograph "Out of Nowhere: The Emergence of Spacetime in Quantum Theories of Gravity", co-authored by Nick Huggett and Christian W\"uthrich and under contract with…Christian Wüthrich, Nick Huggett·Sep 7, 2020SaveLearn
Clusters of Solar Eclipses in the Maori EraA dozen of high-magnitude solar eclipses accumulated near New Zealand in the 15th century AD when the Maori inhabited the two main islands. Taking today's capital Wellington as the point of…Emil Khalisi·Sep 3, 2020SaveLearn
A Personal History of the Hastings-Michalakis Proof of Hall Conductance QuantizationThis is a personal history of the Hastings-Michalakis proof of quantum Hall conductance quantization.M. B. Hastings·Sep 3, 2020SaveLearn
Reconstructing William Lane Craig's Explanation of Absolute Time based on Mulla Sadra's PhilosophyAfter the advent of the theory of special relativity, the existence of absolute time in nature was rejected within the society of physics. In recent decades, William Lane Craig has endeavoured to…M. S. Kavyani, H. Razmi, H. Parsania·Sep 3, 2020SaveLearn
Understanding Quantum Mechanics (Beyond Metaphysical Dogmatism and Naive Empiricism)Quantum Mechanics (QM) has faced deep controversies and debates since its origin when Werner Heisenberg proposed the first mathematical formalism capable to operationally account for what had been…Christian de Ronde·Sep 1, 2020SaveLearn
Historical and philosophical reflections on the Einstein-de Sitter modelWe present some historical and philosophical reflections on the paper "On the Relation Between the Expansion and the Mean Density of the Universe", published by Albert Einstein and Willem de Sitter…Cormac O'Raifeartaigh, Michael O'Keeffe, Simon Mitton·Aug 31, 2020SaveLearn
Functionalism as a Species of ReductionThis is the first of four papers prompted by a recent literature about a doctrine dubbed spacetime functionalism. This paper gives our general framework for discussing functionalism. Following Lewis,…J. Butterfield, H. Gomes·Aug 31, 2020SaveLearn
Native Skywatchers and the Ojibwe Giizhig Anung Masinaaigan-Ojibwe Sky Star MapThe Native Skywatchers programming addresses the loss of Ojibwe and Dakota star knowledge. The goal is to help preserve indigenous astronomy and pass it on to future generations. The star knowledge…Annette S. Lee·Aug 30, 2020SaveLearn
The Personalized A-Theory of Time and PerspectiveA-theorists and B-theorists debate whether the "Now" is metaphysically distinguished from other time slices. Analogously, one may ask whether the "I" is metaphysically distinguished from other…Vincent Conitzer·Aug 30, 2020SaveLearn
Physics, Determinism, and the BrainThis paper responds to claims that causal closure of the underlying microphysics determines brain outcomes as a matter of principle, even if we cannot hope to ever carry out the needed calculations…George F R Ellis·Aug 28, 2020SaveLearn
Classical Tests of General Relativity Part II: Looking to the Past to Understand the PresentThe objective of this second part of the work is to present heuristic derivations of the three classical tests of general relativity. These derivations are based on the Einstein equivalence principle…Jorge Pinochet·Aug 25, 2020SaveLearn
Divine Emanation as Cosmic Origin: Ibn Sina and His CriticsThe question of cosmic beginning has always attracted considerable attention from serious thinkers past and present. This article examines Ibn Sina's proposed solution to the vexed problem that given…Syamsuddin Arif·Aug 25, 2020SaveLearn