Holes And Other Superficialities

"This is an exciting epistemological experiment. It is wonderful to see how intelligent philosophers can take a modest concept, such as that of the hole, as a starting point for an immense and brilliant exercise.... The writing is delightful." -- Valentino Braitenberg, Director, Max-Planck-Institut fü r Biologische Kybernetick "The idea of "Holes and Other Superficialities" is wonderfully counterintuitive: The authors want us to think of absences as full-fledged cognitive entities. The book describes a grand variety of holes -- holes in doughnuts, tunnels through blocks, flowing gaps in regularly-spaced flowerbed, and hundreds more. There are an enormous number of beautifully-rendered illustrations of every imaginable (and often never-before-imagined) type of hole....The overlap with philosophical issues of every sort is marvelous, and the authors have a delightful sense of humor." -- Douglas Hofstadter, author of "Gö del, Escher, Bach" This fascinating investigation on the borderlines of metaphysics, everyday geometry, and the theory of perception seeks to answer two basic questions: Do holes really exist? And if so, what are they? Holes are among entities that down-to-earth philosophers would like to expel from their ontological inventory. Casati and Varzi argue in favor of their existence and explore the consequences of this unorthodox approach -- odd as these might appear. They examine the ontology of holes, their geometry, their part-whole relations, their identity, their causal role, and the ways we perceive them. A Bradford Book

This fascinating investigation on the borderlines of metaphysics, everyday geometry, and the theory of perception seeks to answer two basic questions: Do holes really exist? And if so, what are they? Holes are among entities that down-to-earth philosophers would like to expel from their ontological inventory. Casati and Varzi argue in favor of their existence and explore the consequences of this unorthodox approach - odd as these might appear. They examine the ontology of holes, their geometry, their part-whole relations, their identity, their causal role, and the ways we perceive them. Three basic kinds of holes are distinguished: blind hollows, perforating tunnels, and internal cavities. Treating these uniformly as immaterial bodies, Casati and Varzi develop a morphology of holes, focusing on how a hole can be filled. They then look at the main properties of the resulting conceptual framework: Holes, they observe, are parasitic upon the surface of their hosts; holes can move, fuse into one another, split; they can be born, develop, and die. Finally, the authors examine how some morphological features of holes are represented in perception, including the conditions whereby we have the impression that we see, feel, or even hear a hole. Roberto Casati is Assistant in the Department of Philosophy at the University of Neuchatel, in Switzerland. Achille C. Varzi is with the Istituto per la Ricerca Scientifica e Tecnologica in Trento, Italy.

Thinking about space is thinking about spatial things. The table is on the carpet; hence the carpet is under the table. The vase is in the box; hence the box is not in the vase. But what does it mean for an object to be somewhere? How are objects tied to the space they occupy? In this book Roberto Casati and Achille C. Varzi address some of the fundamental issues in the philosophy of spatial representation. Their starting point is an analysis of the interplay betwen mereology (the study of part/whole relations), topology (the study of spatial continuity and comapctness) and the theory of spatial location proper. This leads to a unified framework for spatial representation understood quite broadly as a theory of the representation of spatial entities. The framework is then tested against some classical metaphysical questions such as: Are parts essential to their whole? Is spatial co-location a sufficient criterion of identity? What (if anything) distinguishes material objects from events and other spatial entities? The concluding chapters deal with applications to topics as diverse as the logical analysis of movement and the semantics of maps.

Why do mirrors seem to invert left and right but not up and down? How do we know whether strawberries taste the same for everyone? Where is it written that we must observe the law, and if it is not written, why should we observe it? What if we could swap brains-or the rest of our bodies? Insurmountable Simplicities is filled with captivating and inventive stories, dialogues, and epistolary exchanges that illuminate the many philosophical conundrums of everyday life. Clear, concise, and intellectually engaging, this internationally acclaimed book covers a range of themes, such as personal identity, causality and responsibility, fortune, the nature of things, the paradoxes of time and space, and the interplay between logic and language, and brilliantly demonstrates that the beauty of philosophy resides in its engagement with the simplicities of the world, insurmountable as they might initially appear.

How the perception of shadows, studied by vision scientists and visual artists, reveals the inner workings of the visual system. In The Visual World of Shadows, Roberto Casati and Patrick Cavanagh examine how the perception of shadows, as studied by vision scientists and visual artists, reveals the inner workings of the visual system. Shadows are at once a massive problem for vision—which must distinguish them from objects or material features of objects—and a resource, signaling the presence, location, shape, and size of objects. Casati and Cavanagh draw up an inventory of information retrievable from shadows, showing their amazing variety. They present an overview of the visual system, distinguishing between measurement and inference. They discuss the shadow mission, the work done by the visual brain to parse, and perhaps discard, the information from shadows; shadow ownership, the association of a shadow with the object that casts it; shadow labeling, the visual system's ability to tell shadows from nonshadows; and the shadow concept, our knowledge about shadows as a category. Casati and Cavanagh then apply the theoretical apparatus they have developed for shadows to other phenomena: illumination, reflection, and transparency. Finally, they examine the art of the shadow, paying tribute to artists' exploration of shadow, analyzing a series of artworks (reproduced in color) from a rich and fascinating art historical corpus.

In this original, wide-ranging, and endlessly thought-provoking work of popular nonfiction, a leading science writer uncovers the pervasive presence of shadows in our world. For Plato, shadows were the symbol of our limitations. For Galileo, they knocked the Earth from the center of the cosmos. They are a source of fear and a symbol of ignorance, and they loom large in art and design, mythology and folklore, physics and metaphysics, and architecture and urban planning. From shadows puppets and the psychology of shadows to the role of shadows in astronomy and the influence of shadows on the architectural profiles of our cities, Roberto Casati awakens our fascination in this tour-de-force of investigation and imagination.

How might we mend the world? Charles Blattberg suggests a "new patriotism," one that reconciles conflict through a form of dialogue that prioritizes conversation over negotiation and the common good over victory. This patriotism can be global as well as local, left as well as right. Blattberg's is a genuinely original philosophical voice. The essays collected here discuss how to re-conceive the political spectrum, where "deliberative deomocrats" go wrong, why human rights language is tragically counterproductive, how nationalism is not really secular, how many nations should share a single state, a new approach to the Arab-Israeli conflict, and why Canada might have something to teach about the "war on terror." We also learn about the right way to deny a role to principles in ethics, how to distinguish between the good and the beautiful, the way humor works, the rabbinic nature of modernism, the difference between good, bad, great, and evil, why Plato's dialogues are not really dialogues, and why most philosophers are actually artists.

Is a whole something more than the sum of its parts? Are there things composed of the same parts? If you divide an object into parts, and divide those parts into smaller parts, will this process ever come to an end? Can something lose parts or gain new ones without ceasing to be the thing it is? Does any multitude of things (including disparate things such as you, this book, and the tail of a cat) compose a whole of some sort? Questions such as these have occupied us for at least as long as philosophy has existed. They define the field that has come to be known as mereology-the study of all relations of part to whole and of part to part within a whole-and have deep and far-reaching ramifications in metaphysics as well as in logic, the foundations of mathematics, the philosophy of language, the philosophy of science, and beyond. In Mereology, A. J. Cotnoir and Achille C. Varzi have compiled decades of advanced research into a comprehensive, up-to-date, and formally rigorous picture. The early chapters cover the more classical aspects of mereology; the rest of the book deals with variants and extensions. Whether you are an established professional philosopher, an interested student, or a newcomer, inside you will find all the tools you need to join this ever-evolving field of inquiry and theorize about all things mereological.