Results for 'Spacetime '

280 found
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  1. Spacetime Emergence in Quantum Gravity: Functionalism and the Hard Problem.Baptiste Le Bihan - 2021 - Synthese 199 (2):371–393.
    Spacetime functionalism is the view that spacetime is a functional structure implemented by a more fundamental ontology. Lam and Wüthrich have recently argued that spacetime functionalism helps to solve the epistemological problem of empirical coherence in quantum gravity and suggested that it also (dis)solves the hard problem of spacetime, namely the problem of offering a picture consistent with the emergence of spacetime from a non-spatio-temporal structure. First, I will deny that spacetime functionalism solves the (...)
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  2. On Spacetime Functionalism.David John Baker - manuscript
    Eleanor Knox has argued that our concept of spacetime applies to whichever structure plays a certain functional role in the laws (the role of determining local inertial structure). I raise two complications for this approach. First, our spacetime concept seems to have the structure of a cluster concept, which means that Knox's inertial criteria for spacetime cannot succeed with complete generality. Second, the notion of metaphysical fundamentality may feature in the spacetime concept, in which case (...) functionalism may be uninformative in the absence of answers to fundamental metaphysical questions like the substantivalist/relationist debate. (shrink)
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  3. Composing Spacetime.Sam Baron & Baptiste Le Bihan - 2022 - Journal of Philosophy 119 (1):33-54.
    According to a number of approaches in theoretical physics, spacetime does not exist fundamentally. Rather, spacetime exists by depending on another, more fundamental, non-spatiotemporal structure. A prevalent opinion in the literature is that this dependence should not be analyzed in terms of composition. We should not say, that is, that spacetime depends on an ontology of non-spatiotemporal entities in virtue of having them as parts. But is that really right? On the contrary, we argue that a mereological (...)
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  4. Holes in Spacetime: Some Neglected Essentials.Trevor Teitel - 2019 - Journal of Philosophy 116 (7):353-389.
    The hole argument purports to show that all spacetime theories of a certain form are indeterministic, including the General Theory of Relativity. The argument has given rise to an industry of searching for a metaphysics of spacetime that delivers the right modal implications to rescue determinism. In this paper, I first argue that certain prominent extant replies to the hole argument—namely, those that appeal to an essentialist doctrine about spacetime—fail to deliver the requisite modal implications. As part (...)
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  5.  20
    Eliminating Spacetime.Sam Baron - 2021 - Erkenntnis 88 (3):1289-1308.
    A number of approaches to quantum gravity (QG) seem to imply that spacetime does not exist. Philosophers are quick to point out, however, that the loss of spacetime should not be regarded as total. Rather, we should interpret these approaches as ones that threaten the fundamentality but not the existence of spacetime. In this paper, I argue for two claims. First, I argue that spacetime realism is not forced by QG; spacetime eliminativism remains an option. (...)
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  6. From Spacetime to Space and Time: A Reply to Markosian.Baptiste Le Bihan - 2020 - Analysis 80 (3):456-462.
    In a recent article, Ned Markosian gives an argument against four-dimensionalism understood as the view that time is one of four identical dimensions that constitute a single four-dimensional manifold. In this paper, I show that Markosian attacks a straw man as his argument targets a theory known to be false on empirical grounds. Four-dimensionalism rightly conceived in no way entails that time is identical to space. I then address two objections raised by Markosian against four-dimensionalism rightly conceived.
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  7. Have we Lost Spacetime on the Way? Narrowing the Gap between General Relativity and Quantum Gravity.Baptiste Le Bihan & Niels Siegbert Linnemann - 2019 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 65 (C):112-121.
    Important features of space and time are taken to be missing in quantum gravity, allegedly requiring an explanation of the emergence of spacetime from non-spatio-temporal theories. In this paper, we argue that the explanatory gap between general relativity and non-spatio- temporal quantum gravity theories might significantly be reduced with two moves. First, we point out that spacetime is already partially missing in the context of general relativity when understood from a dynamical perspective. Second, we argue that most approaches (...)
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  8. How to Be a Spacetime Substantivalist.Trevor Teitel - 2022 - Journal of Philosophy 119 (5):233-278.
    The consensus among spacetime substantivalists is to respond to Leibniz's classic shift arguments, and their contemporary incarnation in the form of the hole argument, by pruning the allegedly problematic metaphysical possibilities that generate these arguments. Some substantivalists do so by directly appealing to a modal doctrine akin to anti-haecceitism. Other substantivalists do so by appealing to an underlying hyperintensional doctrine that implies some such modal doctrine. My first aim in this paper is to pose a challenge for all extant (...)
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  9. Spacetime, Ontology, and Structural Realism.Edward Slowik - 2005 - International Studies in the Philosophy of Science 19 (2):147 – 166.
    This essay explores the possibility of constructing a structural realist interpretation of spacetime theories that can resolve the ontological debate between substantivalists and relationists. Drawing on various structuralist approaches in the philosophy of mathematics, as well as on the theoretical complexities of general relativity, our investigation will reveal that a structuralist approach can be beneficial to the spacetime theorist as a means of deflating some of the ontological disputes regarding similarly structured spacetimes.
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  10. Priority Monism Beyond Spacetime.Baptiste Le Bihan - 2017 - Metaphysica 19 (1):95-111.
    I will defend two claims. First, Schaffer's priority monism is in tension with many research programs in quantum gravity. Second, priority monism can be modified into a view more amenable to this physics. The first claim is grounded in the fact that promising approaches to quantum gravity such as loop quantum gravity or string theory deny the fundamental reality of spacetime. Since fundamental spacetime plays an important role in Schaffer's priority monism by being identified with the fundamental structure, (...)
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  11. Thinking about Spacetime.David Yates - 2021 - In Christian Wüthrich, Baptiste Le Bihan & Nick Huggett (eds.), Philosophy Beyond Spacetime: Implications From Quantum Gravity. Oxford: Oxford University Press.
    Several different quantum gravity research programmes suggest, for various reasons, that spacetime is not part of the fundamental ontology of physics. This gives rise to the problem of empirical coherence: if fundamental physical entities do not occupy spacetime or instantiate spatiotemporal properties, how can fundamental theories concerning those entities be justified by observation of spatiotemporally located things like meters, pointers and dials? I frame the problem of empirical coherence in terms of entailment: how could a non-spatiotemporal fundamental theory (...)
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  12. Spacetime as a Formal Semiotic Process.Timothy M. Rogers - manuscript
    An exploration of the relational ontology of space, time and light.
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  13. Super-Relationism: Combining Eliminativism about Objects and Relationism about Spacetime.Baptiste Le Bihan - 2016 - Philosophical Studies 173 (8):2151-2172.
    I will introduce and motivate eliminativist super-relationism. This is the conjunction of relationism about spacetime and eliminativism about material objects. According to the view, the universe is a big collection of spatio-temporal relations and natural properties, and no substance (material or spatio-temporal) exists in it. The view is original since eliminativism about material objects, when understood as including not only ordinary objects like tables or chairs but also physical particles, is generally taken to imply substantivalism about spacetime: if (...)
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  14. Causal Theories of Spacetime.Sam Baron & Baptiste Le Bihan - 2023 - Noûs 58 (1):202-224.
    We develop a new version of the causal theory of spacetime. Whereas traditional versions of the theory seek to identify spatiotemporal relations with causal relations, the version we develop takes causal relations to be the grounds for spatiotemporal relations. Causation is thus distinct from, and more basic than, spacetime. We argue that this non-identity theory, suitably developed, avoids the challenges facing the traditional identity theory.
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  15. Spacetime Emergence: Collapsing the Distinction Between Content and Context?Karen Crowther - 2022 - In Shyam Wuppuluri & Ian Stewart (eds.), From Electrons to Elephants and Elections: Saga of Content and Context. Springer. pp. 379–402.
    Several approaches to developing a theory of quantum gravity suggest that spacetime—as described by general relativity—is not fundamental. Instead, spacetime is supposed to be explained by reference to the relations between more fundamental entities, analogous to `atoms' of spacetime, which themselves are not (fully) spatiotemporal. Such a case may be understood as emergence of \textit{content}: a `hierarchical' case of emergence, where spacetime emerges at a `higher', or less-fundamental, level than its `lower-level' non-spatiotempral basis. But quantum gravity (...)
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  16.  31
    Spacetime 1909 – 2019. Selected peer-reviewed papers presented at the Second Hermann Minkowski Meeting on the Foundations of Spacetime Physics.Jan Reinoud & Zoltan Keresztes (eds.) - 2020
    I have defended the idea that the passage of time can be thought of as a local phenomenon, as the succession of causal diamonds along timelike curves, in relativistic spacetimes. This idea has been criticized by Craig Callender and Oliver Pooley. In this paper, I articulate my view in more detail than I have hitherto and defend it from their criticisms.
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  17. Descartes, Spacetime, and Relational Motion.Edward Slowik - 1999 - Philosophy of Science 66 (1):117-139.
    This paper examines Descartes' problematic relational theory of motion, especially when viewed within the context of his dynamics, the Cartesian natural laws. The work of various commentators on Cartesian motion is also surveyed, with particular emphasis placed upon the recent important texts of Garber and Des Chene. In contrast to the methodology of most previous interpretations, however, this essay employs a modern "spacetime" approach to the problem. By this means, the role of dynamics in Descartes' theory, which has often (...)
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  18. On the Ontology of Spacetime: Substantivalism, Relationism, Eternalism, and Emergence.Gustavo E. Romero - 2017 - Foundations of Science 22 (1):141-159.
    I present a discussion of some issues in the ontology of spacetime. After a characterisation of the controversies among relationists, substantivalists, eternalists, and presentists, I offer a new argument for rejecting presentism, the doctrine that only present objects exist. Then, I outline and defend a form of spacetime realism that I call event substantivalism. I propose an ontological theory for the emergence of spacetime from more basic entities. Finally, I argue that a relational theory of pre-geometric entities (...)
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  19. As below, so before: ‘synchronic’ and ‘diachronic’ conceptions of spacetime emergence.Karen Crowther - 2020 - Synthese 198 (8):7279-7307.
    Typically, a less fundamental theory, or structure, emerging from a more fundamental one is an example of synchronic emergence. A model emerging from a prior model upon which it nevertheless depends is an example of diachronic emergence. The case of spacetime emergent from quantum gravity and quantum cosmology challenges these two conceptions of emergence. Here, I propose two more-general conceptions of emergence, analogous to the synchronic and diachronic ones, but which are potentially applicable to the case of emergent (...): an inter-level, hierarchical conception, and an intra-level, ‘flat’ conception. I then explore whether, and how, these ideas may be applicable in the case of several putative examples of relativistic spacetime emergent from the non-spatiotemporal structures described by different approaches to quantum gravity, and of spacetime emergent from a non-spatiotemporal ‘big bang’ state according to different examples of quantum cosmology. (shrink)
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  20. Spacetime structural property of matter in movement.Alfonso Leon Guillen Gomez - 2010 - In Petrov`s Symposium Contributed papers. Kazan, Russian: Kazan University. pp. 101-109.
    The theoretical contradiction between General Relativity and Quantum Gravity about gravity was ended, since spacetime is not structural property of the gravitational fi eld like Einstein said. Exactly spacetime is the structural geometric property of the matter and energy that it gives their geometric dimensions. Thus, spacetime is not continent of the matter (Substantialism), since it is contained. Neither is the category of the relations between material bodies or between their events (Relationalism) since is not relational property; (...)
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  21. Holes as Regions of Spacetime.Andrew Wake, Joshua Spencer & Gregory Fowler - 2007 - The Monist 90 (3):372-378.
    We discuss the view that a hole is identical to the region of spacetime at which it is located. This view is more parsimonious than the view that holes are sui generis entities located at those regions surrounded by their hosts and it is more plausible than the view that there are no holes. We defend the spacetime view from several objections.
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  22. McTaggartian Spacetime: physics in the new theory of time.Paul Merriam - manuscript
    We define and develop a notion of spacetime that incorporates both McTaggart's A-series and his B-series that is consistent with special relativity. This 'McTaggartian spacetime' or 'AB-spacetime' requires *five* not *4* variables. The interface of two AB-spacetimes from different *ontological perspectives* is quantum mechanical. This note concentrates on the physics and not the philosophy. This is an invitation to contribute to a theory that is a work in progress.
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  23. Idealist Panpsychism and Spacetime Structure.Damian Aleksiev - 2024 - Journal of the American Philosophical Association 10 (3):615-636.
    This paper presents a novel argument against one theoretically attractive form of panpsychism. I argue that “idealist panpsychism” is false since it cannot account for spacetime’s structure. Idealist panpsychists posit that fundamental reality is purely experiential. Moreover, they posit that the consciousness at the fundamental level metaphysically grounds and explains both the facts of physics and the facts of human consciousness. I argue that if idealist panpsychism is true, human consciousness and the consciousness at the fundamental level will have (...)
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  24. Hot Spacetime (Queen and Philosophy).Kristina Šekrst - 2022 - In Jared Kemling (ed.), Queen and Philosophy: Guaranteed to Blow Your Mind. Pop Culture and Philosophy. pp. 149-158. Translated by Randall E. Auxier.
    The purpose of this paper is twofold. First, we will observe how May’s background in astrophysics influenced Queen's lyrics, such as 'Don't Stop Me Now' or 'Dead on Time'. Our goal is to see how physical and philosophical concepts of matter and time intersect with the common understanding of such phenomena, and how they differ from them. Second, we will focus on usually not that well-known song ‘39, which shows the entire point of the special theory of relativity through a (...)
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  25. Three possible implications of spacetime discreteness.Shan Gao - 2013
    We analyze the possible implications of spacetime discreteness for the special and general relativity and quantum theory. It is argued that the existence of a minimum size of spacetime may explain the invariance of the speed of light in special relativity and Einstein’s equivalence principle in general relativity. Moreover, the discreteness of spacetime may also result in the collapse of the wave function in quantum mechanics, which may provide a possible solution to the quantum measurement problem. These (...)
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  26. What branching spacetime might do for physics.Mark Sharlow - 2007
    In recent years, the branching spacetime (BST) interpretation of quantum mechanics has come under study by a number of philosophers, physicists and mathematicians. This paper points out some implications of the BST interpretation for two areas of quantum physics: (1) quantum gravity, and (2) stochastic interpretations of quantum mechanics.
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  27. Philosophy Beyond Spacetime: Introduction.Christian Wüthrich, Baptiste Le Bihan & Nick Huggett - 2021 - In Christian Wüthrich, Baptiste Le Bihan & Nick Huggett (eds.), Philosophy Beyond Spacetime: Implications From Quantum Gravity. Oxford: Oxford University Press. pp. 1-15.
    The present volume collects essays on the philosophical foundations of quantum theories of gravity, such as loop quantum gravity and string theory. Central for philosophical concerns is quantum gravity's suggestion that space and time, or spacetime, may not exist fundamentally, but instead be a derivative entity emerging from non-spatiotemporal degrees of freedom. In the spirit of naturalised metaphysics, contributions to this volume consider the philosophical implications of this suggestion. In turn, philosophical methods and insights are brought to bear on (...)
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  28. On Structuralism’s Multiple Paths through Spacetime Theories.Edward Slowik - 2012 - European Journal for Philosophy of Science 2 (1):45-66.
    This essay examines the underdetermination problem that plagues structuralist approaches to spacetime theories, with special emphasis placed on the epistemic brands of structuralism, whether of the scientific realist variety or not. Recent non-realist structuralist accounts, by Friedman and van Fraassen, have touted the fact that different structures can accommodate the same evidence as a virtue vis-à-vis their realist counterparts; but, as will be argued, these claims gain little traction against a properly constructed liberal version of epistemic structural realism. Overall, (...)
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  29.  37
    Spacetime and quantum fields.Sydney Ernest Grimm - 2024 - Philosophy of the Mathematical Nature of Reality 2024 (08-04):2.
    Einstein's theory of Relativity describes variances of the volume of our universe in a model that is known as "spacetime". Quantum field theory describes the volume of our universe as a composition of a limited number of basic quantum fields. Both models exclude each other.
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  30. The Medium for Motion: A Critical Clue to Understand Spacetime.Alfonso Leon Guillen Gomez - 2015 - International Journal of Modern Physics and Applications 1 (5):210-218.
    Spacetime and motion are interconnected concepts. A better understanding of motion leads to a better understanding of spacetime. We use the historical critical analysis of the various theoretical proposals on motion in search of clues ignored. The prediction of the general relativity that the motion occurs in the static gravitational field is not valid because the motion always occurs in a given medium as vacuum, atmosphere, water, etc. The concept of motion and the equations of the special and (...)
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  31.  37
    Hypothesis and Convention in Poincaré’s Defense of Galilei Spacetime.Scott Walter - 2009 - In Michael Heidelberger & Gregor Schiemann (eds.), The Significance of the Hypothetical in Natural Science. De Gruyter. pp. 193-220.
    According to the conventionalist doctrine of space elaborated by the French philosopher-scientist Henri Poincaré in the 1890s, the geometry of physical space is a matter of definition, not of fact. Poincaré's Hertz-inspired view of the role of hypothesis in science guided his interpretation of the theory of relativity (1905), which he found to be in violation of the axiom of free mobility of invariable solids. In a quixotic effort to save the Euclidean geometry that relied on this axiom, Poincaré extended (...)
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  32. Productive Laws in Relativistic Spacetimes.Chris Dorst - forthcoming - Philosophers' Imprint.
    One of the most intuitive views about the metaphysics of laws of nature is Tim Maudlin's idea of a Fundamental Law of Temporal Evolution. So-called FLOTEs are primitive elements of the universe that produce later states from earlier states. While FLOTEs are at home in traditional Newtonian and non-relativistic quantum mechanical theories (not to mention our pre-theoretic conception of the world), I consider here whether they can be made to work with relativity. In particular, shifting to relativistic spacetimes poses two (...)
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  33. On curved spacetime.Sydney Ernest Grimm - manuscript
    Albert Einstein’s theory of General Relativity was once the leading theory in theoretical physics. Unfortunately the theory describes macroscopic reality without a clear link with the the microcosm in respect to the properties of spacetime. However the theory of General Relativity has proved to predict macroscopic phenomena in a very accurate way. Nowadays most theoretical physicists use the conceptual framework of quantum theory. So it is not surprisingly that the question about the “true nature” of spacetime becomes very (...)
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  34. God and Spacetime.Paul Studtmann - manuscript
    In The Divine Fractal, Studtmann (2021) introduced a novel conception of God, what he calls the symmetry conception, and showed that such a conception not only can be formalized within extensional non-well-founded set theory but also entails the Thomistic view that God is identical to her essence. In this paper, I show that Studtmann’s symmetry conception of God can be integrated into a recent approach to quantum gravity, namely causal set theory. The theory that results has two significant consequences. First, (...)
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  35. Mereological Models of Spacetime Emergence.Jessica Pohlmann - 2024 - Philosophy Compass 19 (7):e13003.
    Recent work in quantum gravity has prompted a re-evaluation of the fundamental nature of spacetime. Spacetime is potentially emergent from non-spatiotemporal entities posited by a theory of quantum gravity. Recent efforts have sought to interpret the relationship between spacetime and the fundamental entities through a mereological framework. These frameworks propose that spacetime can be conceived as either having non-spatiotemporal entities as its constituents or being a constituent part of a non-spatiotemporal structure. I present a roadmap for (...)
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  36. From Change to Spacetime: An Eleatic Journey.Gustavo E. Romero - 2013 - Foundations of Science 18 (1):139-148.
    I present a formal ontological theory where the basic building blocks of the world can be either things or events. In any case, the result is a Parmenidean worldview where change is not a global property. What we understand by change manifests as asymmetries in the pattern of the world-lines that constitute 4-dimensional existents. I maintain that such a view is in accord with current scientific knowledge.
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  37.  42
    A System of Axioms for Minkowski Spacetime.Lorenzo Cocco & Joshua Babic - 2020 - Journal of Philosophical Logic 50 (1):149-185.
    We present an elementary system of axioms for the geometry of Minkowski spacetime. It strikes a balance between a simple and streamlined set of axioms and the attempt to give a direct formalization in first-order logic of the standard account of Minkowski spacetime in Maudlin and Malament. It is intended for future use in the formalization of physical theories in Minkowski spacetime. The choice of primitives is in the spirit of Tarski : a predicate of betwenness and (...)
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  38. Duration in relativistic spacetime.Antony Eagle - 2009 - In Dean Zimmerman (ed.), Oxford Studies in Metaphysics: Volume 5. Oxford University Press UK. pp. 113-17.
    In ‘Location and Perdurance’ (2010), I argued that there are no compelling mereological or sortal grounds requiring the perdurantist to distinguish the molecule Abel from the atom Abel in Gilmore’s original case (2007). The remaining issue Gilmore originally raised concerned the ‘mass history’ of Adam and Abel, the distribution of ‘their’ mass over spacetime. My response to this issue was to admit that mass histories needed to be relativised to a way of partitioning the location of Adam/Abel, but that (...)
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  39. Building enduring objects out of spacetime.Cody Gilmore - 2014 - In Claudio Calosi & Pierluigi Graziani (eds.), Mereology and the Sciences: Parts and Wholes in the Contemporary Scientific Context. Cham: Springer Verlag. pp. 5-34.
    Endurantism, the view that material objects are wholly present at each moment of their careers, is under threat from supersubstantivalism, the view that material objects are identical to spacetime regions. I discuss three compromise positions. They are alike in that they all take material objects to be composed of spacetime points or regions without being identical to any such point or region. They differ in whether they permit multilocation and in whether they generate cases of mereologically coincident entities.
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  40. The irrelevance of the presentist/eternalist debate for the ontology of Minkowski spacetime.Mauro Dorato - 2006 - In Dennis Geert Bernardus Johan Dieks (ed.), The ontology of spacetime. Boston: Elsevier. pp. 93-109.
    In this paper I argue that the debate between the so-called “presentists” – according to whom only the present is real – and the “eternalists”, according to whom past present and future are equally real, has no ontological significance. In particular, once we carefully distinguish between a tensed and a tenseless sense of existence, it is difficult to find a single ontological claim on which the two parties could disagree. Since the choice of using a tense or a tenseless language (...)
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  41. Distributional SAdS BH Spacetime-Induced Vacuum Dominance.Jaykov Foukzon - 2016 - Journal of Advances in Mathematics and Computer Science 13 (6):1-54.
    This paper dealing with extension of the Einstein eld equations using apparatus of contemporary generalization of the classical Lorentzian geometry named in literature Colombeau distributional geometry, see for example [1], [2], [3], [4], [5], [6], [7] and [32]. The regularizations of singularities presented in some solutions of the Einstein equations is an important part of this approach. Any singularities present in some solutions of the Einstein equations recognized only in the sense of Colombeau generalized functions [1], [2] and not classically. (...)
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  42. Group Field Theories: Decoupling Spacetime Emergence from the Ontology of non-Spatiotemporal Entities.Marco Forgione - 2024 - European Journal for Philosophy of Science 14 (22):1-23.
    With the present paper I maintain that the group field theory (GFT) approach to quantum gravity can help us clarify and distinguish the problems of spacetime emergence from the questions about the nature of the quanta of space. I will show that the mechanism of phase transition suggests a form of indifference between scales (or phases) and that such an indifference allows us to black-box questions about the nature of the ontology of the fundamental levels of the theory. I (...)
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  43.  21
    Spacetime 1909 - 2019.Reinoud Jan Slagter & Zoltán Keresztes (eds.) - 2020
    I have defended the idea that the passage of time can be thought of as a local phenomenon, as the succession of causal diamonds along timelike curves, in relativistic spacetimes. This idea has been criticized by Craig Callender and Oliver Pooley. In this paper, I articulate my view in more detail than I have hitherto and defend it from their criticisms.
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  44. (4 other versions)Out of Nowhere: the 'emergence' of spacetime in string theory.Nick Huggett & Christian Wüthrich - manuscript
    This 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 Wüthrich and under contract with Oxford University Press. This chapter analyses the nature and derivation of spacetime topology and geometry according to string theory.
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  45. The Emergence of Spacetime in String Theory-Intro&Table of Content.Tiziana Vistarini - 2019 - London and New York: Routledge.
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  46. Special and General Relativity based on the Physical Meaning of the Spacetime Interval.Alan Macdonald - manuscript
    We outline a simple development of special and general relativity based on the physical meaning of the spacetime interval. The Lorentz transformation is not used.
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  47. On A- and B-theoretic elements of branching spacetimes.Matt Farr - 2012 - Synthese 188 (1):85-116.
    This paper assesses branching spacetime theories in light of metaphysical considerations concerning time. I present the A, B, and C series in terms of the temporal structure they impose on sets of events, and raise problems for two elements of extant branching spacetime theories—McCall’s ‘branch attrition’, and the ‘no backward branching’ feature of Belnap’s ‘branching space-time’—in terms of their respective A- and B-theoretic nature. I argue that McCall’s presentation of branch attrition can only be coherently formulated on a (...)
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  48. Beyond spacetime and quantum fields.Sydney Ernest Grimm - manuscript
    During the 20th century there were a couple of scientists who announced the observation of exceptional heat during the electrolysis of water with the help of Palladium electrodes. In spite of the opinion of the community of nuclear physicists that low energy generated nuclear fusion is a hoax there is a lot of research to understand and create the observed emission of exceptional electromagnetic radiation. This paper explains with the help of the concept of quantized space the simple mechanism that (...)
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  49. Imagination, Fiction and the Reality of Minkowski’s Discovery of Spacetime.Gregorie Dupuis - 2023 - In Gregorie Dupuis & A. S. Stefanov (eds.), Spacetime Conference 2022. Selected peer-reviewed papers presented at the Sixth International Conference on the Nature and Ontology of Spacetime, 12 - 15 September 2022, Albena, Bulgaria. Montreal: Minkowski Institute Press.
    One of the greatest achievements of modern physics is the discovery of spacetime by Hermann Minkowski. Still, talking about the ”discovery” of spacetime cannot be done without further questioning its ontological status. Did Minkowski discover a real physical substrate? What is the creative role of his scientific imagination in the process of discovery? To what extent the explanatory power of spacetime supports the conclusion that it is a true description of the physical world? I consider those questions (...)
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  50. What is spacetime?Alfonso León Guillén Gómez - manuscript
    Based on the Russian school of Logunov and others, with the contribution of Tom van Flandern, and his previous works on space-time, gravitational waves and speed of the gravity, the author discusses the theory of the time-space fluid that results from the supposed gravitational waves that would have detected LIGO, and reaffirms the space-time as a structural geometric property of the dynamic matter (radiation, matter and quantum vacuum), now with the strong argument that without escape, in an unnatural way, the (...)
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