Part I. Time and Timelessness: Historical Outlooks -- Chapter 1. Atemporality and the Origins of the Eternal Cosmos: Debates on Timeless Simultaneity within Platonic Cosmogonies -- Chapter 2. Time and Atemporality of Time in Hegel’s Naturphilosophie -- Chapter 3. Not Even Ideal. Kant on Absolute Time and Gödel’s Rotating Universes -- Part II. Time and Timelessness in the Philosophy of Physics -- Chapter 4. Time is Order -- Chapter 5. En Route to Reduction: Lorentzian Manifolds and Causal Sets -- Chapter 6. Causation as Constraints in Causal Set Theory -- Chapter 7. Covariant Canonical Quantization and the Problem of Time -- Chapter 8. Asymptotic Reasoning and Universality in (Space)time Dynamics -- Chapter 9. On the Problem of Time in Asymptotically Safe Quantum Gravity -- Part III. Time and Timelessness in Cosmology -- Chapter 10. Time, Spacetime and F-Theory -- Chapter 11. Hydrodynamics on (Mini)superspace or a Non-linear Extension of Quantum Cosmology -- Chapter 12. Arrows of Time in Bouncing Cosmologies -- Chapter 13. Noether Symmetries in Quantum Cosmology: A Selection Rule For Observable Universes.

This book offers a clear account of timelessness together with the discussion of temporality in fundamental physics and cosmology. The multi-disciplinary approach to the problem of time and timelessness shows the remarkable difference between pre-relativistic debates and current developments. This book thoroughly discusses notions of timelessness and time emerging in the most recent literature on Quantum Gravity, String Theory and Cosmology. The contributions explore, among many aspects, the historical-philosophical roots of the notions of temporality and atemporality, the role of mathematics in defining time and temporality with respect to both order relations and causality, approaches to quantum gravity and cosmology that make use of quantum fluids and condensate to approximate space–time in general relativity, time and timelessness in black holes and the problem of cosmological time in bouncing cosmologies. The novelty of this volume lies in the interaction among scientists, philosophers, and historians in exploring the nature of time and timelessness and the origin of these concepts. The book represents a valuable toolkit for researchers and graduate students in physics, cosmology, philosophy and the history of those fields.