The Problem Of Time

This book is a treatise on time and on background independence in physics. It first considers how time is conceived of in each accepted paradigm of physics: Newtonian, special relativity, quantum mechanics (QM) and general relativity (GR). Substantial differences are moreover uncovered between what is meant by time in QM and in GR. These differences jointly source the Problem of Time: Nine interlinked facets which arise upon attempting concurrent treatment of the QM and GR paradigms, as is required in particular for a background independent theory of quantum gravity. A sizeable proportion of current quantum gravity programs - e.g. geometrodynamical and loop quantum gravity approaches to quantum GR, quantum cosmology, supergravity and M-theory - are background independent in this sense. This book's foundational topic is thus furthermore of practical relevance in the ongoing development of quantum gravity programs. This book shows moreover that eight of the nine facets of the Problem of Time already occur upon entertaining background independence in classical (rather than quantum) physics. By this development, and interpreting shape theory as modelling background independence, this book further establishes background independence as a field of study. Background independent mechanics, as well as minisuperspace (spatially homogeneous) models of GR and perturbations thereabout are used to illustrate these points. As hitherto formulated, the different facets of the Problem of Time greatly interfere with each others' attempted resolutions. This book explains how, none the less, a local resolution of the Problem of Time can be arrived at after various reconceptualizations of the facets and reformulations of their mathematical implementation. Self-contained appendices on mathematical methods for basic and foundational quantum gravity are included. Finally, this book outlines how supergravity is refreshingly different from GR as a realization of background independence, and what background independence entails at the topological level and beyond.

The Indigenous communities of the Lower Fraser River, British Columbia (a group commonly called the Stó:lõ), have historical memories and senses of identity deriving from events, cultural practices, and kinship bonds that had been continuously adapting long before a non-Native visited the area directly. In The Power of Place, the Problem of Time, Keith Thor Carlson re-thinks the history of Native-newcomer relations from the unique perspective of a classically trained historian who has spent nearly two decades living, working, and talking with the Stó:lõ peoples. Stó:lõ actions and reactions during colonialism were rooted in their pre-colonial experiences and customs, which coloured their responses to events such as smallpox outbreaks or the gold rush. Profiling tensions of gender and class within the community, Carlson emphasizes the elasticity of collective identity. A rich and complex history, The Power of Place, the Problem of Time looks to both the internal and the external factors which shaped a society during a time of great change and its implications extend far beyond the study region.

What is time and how does it influence our knowledge of international politics? For decades International Relations (IR) paid little explicit attention to time. Recently this began to change as a range of scholars took an interest in the temporal dimensions of politics. Yet IR still has not fully addressed the issue of why time matters in international politics, nor has it reflected on its own use of time — how temporal ideas affect the way we work to understand political phenomena. Moreover, IR remains beholden to two seemingly contradictory visions of time: the time of the clock and a longstanding tradition treating time as a problem to be solved. International Relations and the Problem of Time develops a unique response to these interconnected puzzles. It reconstructs IR's temporal imagination by developing an argument that all times - from natural rhythms to individual temporal experience - spring from social and practical timing activities, or efforts to establish meaningful and useful relationships in complex and dynamic settings. In IR's case, across a surprisingly wide range of approaches scholars employ narrative timing techniques to make sense of confounding processes and events. This innovative account of time provides a more systematic and rigorous explanation for time in international politics. It also develops provocative insights about IR's own history, its key methodological commitments, supposedly 'timeless' statistical methods, historical institutions, and the critical vanguard of time studies. This book invites us to reimagine time, and in so doing to significantly rethink the way we approach the analysis of international politics.

This book explores the problem of time and immanence for phenomenology in the work of Edmund Husserl, Martin Heidegger, Maurice Merleau-Ponty, and Jacques Derrida. Detailed readings of immanence in light of the more familiar problems of time-consciousness and temporality provide the framework for evaluating both Husserl's efforts to break free of modern philosophy's notions of immanence, and the influence Heidegger's criticism of Husserl exercised over Merleau-Ponty's and Derrida's alternatives to Husserl's phenomenology. Ultimately exploring various notions of intentionality, these in-depth analyses of immanence and temporality suggest a new perspective on themes central to phenomenology's development as a movement and raise for debate the question of where phenomenology begins and ends.

The Indigenous communities of the Lower Fraser River, British Columbia (a group commonly called the Stó:lõ), have historical memories and senses of identity deriving from events, cultural practices, and kinship bonds that had been continuously adapting long before a non-Native visited the area directly. In The Power of Place, the Problem of Time, Keith Thor Carlson re-thinks the history of Native-newcomer relations from the unique perspective of a classically trained historian who has spent nearly two decades living, working, and talking with the Stó:lõ peoples. Stó:lõ actions and reactions during colonialism were rooted in their pre-colonial experiences and customs, which coloured their responses to events such as smallpox outbreaks or the gold rush. Profiling tensions of gender and class within the community, Carlson emphasizes the elasticity of collective identity. A rich and complex history, The Power of Place, the Problem of Time looks to both the internal and the external factors which shaped a society during a time of great change and its implications extend far beyond the study region.

A fascinating look at author J. W. Dunne’s controversial model of multidimensional time, based on precognitive dreams. The proposed concept accounted for insights into higher consciousness and many of life’s mysteries.

One of TIME’s Ten Best Nonfiction Books of the Decade "Meet the new Stephen Hawking . . . The Order of Time is a dazzling book." --The Sunday Times From the bestselling author of Seven Brief Lessons on Physics, Reality Is Not What It Seems, Helgoland, and Anaximander comes a concise, elegant exploration of time. Why do we remember the past and not the future? What does it mean for time to "flow"? Do we exist in time or does time exist in us? In lyric, accessible prose, Carlo Rovelli invites us to consider questions about the nature of time that continue to puzzle physicists and philosophers alike. For most readers this is unfamiliar terrain. We all experience time, but the more scientists learn about it, the more mysterious it remains. We think of it as uniform and universal, moving steadily from past to future, measured by clocks. Rovelli tears down these assumptions one by one, revealing a strange universe where at the most fundamental level time disappears. He explains how the theory of quantum gravity attempts to understand and give meaning to the resulting extreme landscape of this timeless world. Weaving together ideas from philosophy, science and literature, he suggests that our perception of the flow of time depends on our perspective, better understood starting from the structure of our brain and emotions than from the physical universe. Already a bestseller in Italy, and written with the poetic vitality that made Seven Brief Lessons on Physics so appealing, The Order of Time offers a profoundly intelligent, culturally rich, novel appreciation of the mysteries of time.