A young scientist and mathematician explores the mystery and complexity of human thought processes from an interdisciplinary point of view.

Can thought arise out of matter? Can self, soul, consciousness, “I” arise out of mere matter? If it cannot, then how can you or I be here? I Am a Strange Loop argues that the key to understanding selves and consciousness is the “strange loop”—a special kind of abstract feedback loop inhabiting our brains. The most central and complex symbol in your brain is the one called “I.” The “I” is the nexus in our brain, one of many symbols seeming (...) to have free will and to have gained the paradoxical ability to push particles around, rather than the reverse. How can a mysterious abstraction be real—or is our “I” merely a convenient fiction? Does an “I” exert genuine power over the particles in our brain, or is it helplessly pushed around by the laws of physics? These are the mysteries tackled in I Am a Strange Loop, Douglas Hofstadter's first book-length journey into philosophy since Gödel, Escher, Bach. Compulsively readable and endlessly thought-provoking, this is a moving and profound inquiry into the nature of mind. (shrink)

Essays from some of the 20th century's greatest thinkers explore topics as diverse as artificial intelligence, evolution, science fiction, philosophy, reductionism, and consciousness, presenting a variety of conflicting visions of the self and the soul. Illustrations.

It is the purpose of this paper to carry out a partial syntactical analysis of imperatives. Imperatives form a large body of linguistic expressions, appearing, e.g. in mathematical proofs be a continuous function!”), laws, moral injunctions, instruction, etc. For analytical purposes we distinguish between two forms of imperatives, the fiat and the directive. By a directive we mean an imperative which includes an indication of the agent who is to carry it out. For example, “Henry, don't forget to stop at (...) the grocery!” is a directive. By a fiat we mean an imperative which includes no reference to an agent who is to carry it out. For example, “Let there be light!” is a fiat. This is a distinction made in terms of meaning. If, however, proper symbolic devices were introduced for the formalization of imperatives, it could be made in a syntactical manner. Thus we could distinguish between imperatives which possess a certain operator—the directive operator formed by putting a name within square brackets—as “[Henry]!”, and imperatives which do not possess this operator, e.g. “Let it be the case that Henry does not forget to stop at the grocery!” In the following we pay attention only to fiats. This, of course, involves a great limitation of subject matter and excludes topics of great interest. (shrink)

High-level perception--”the process of making sense of complex data at an abstract, conceptual level--”is fundamental to human cognition. Through high-level perception, chaotic environmen- tal stimuli are organized into the mental representations that are used throughout cognitive pro- cessing. Much work in traditional artificial intelligence has ignored the process of high-level perception, by starting with hand-coded representations. In this paper, we argue that this dis- missal of perceptual processes leads to distorted models of human cognition. We examine some existing artificial-intelligence models--”notably (...) BACON, a model of scientific discovery, and the Structure-Mapping Engine, a model of analogical thought--”and argue that these are flawed pre- cisely because they downplay the role of high-level perception. Further, we argue that perceptu- al processes cannot be separated from other cognitive processes even in principle, and therefore that traditional artificial-intelligence models cannot be defended by supposing the existence of a --œrepresentation module--� that supplies representations ready-made. Finally, we describe a model of high-level perception and analogical thought in which perceptual processing is integrated with analogical mapping, leading to the flexible build-up of representations appropriate to a given context. (shrink)

The measure of man.--What philosophy is and does.--The vocation of consciousness.--The touch of art.--The voice of the dead wife.--The kin-consciousness of art.--The poem is not a symbol.--The poem is a symbol.--Being: the act of belonging.

This paper interprets the Critique of Judgment as the culmination of Kant's contribution to our understanding of freedom--the human meaning of which is being-with-other-as-with-own. Central to that complex achievement and to the overarching role assigned by Kant to the aesthetic dimension (beauty, feeling, judgment, and art) is his revolutionary new way of seeing beauty and art as the expression of aesthetic ideas--a definition of them which carries him beyond formalism to illuminate also the modern and romantic search for freedom. This (...) move also brings Kant to the threshold of religious ethics as man's ultimate freedom, his being-with-the-infinitely-transcendent-as-with-own, is, in art and beauty, disclosed for imagination and made available for the life of feeling in this world. (shrink)

Heraclitus said: "Wisdom is one thing: to know the gnome, the thought, by which all things are guided through all." Heidegger has said: "To think is to confine yourself to a single thought that one day stands still like a star in the world’s sky." Hegel portrayed the history of philosophy as the development of one single thought, which he expressed throughout a lifetime of philosophical genius: the speculative concept of self-consciousness, the identity of subject and object, of differents and (...) opposites. (shrink)

A good anthology of articles drawn mainly from the British and American journals over the past twenty-five years. Some of the names appearing are Ziff, Margolis, Weitz, Black, Hospers, Mothersill, Hofstadter, Aiken, Aldrich, Urmson, and Passmore. The editor has contributed an introduction and an additional article of his own. The book is divided into five sections, the titles of which indicate fairly enough their thematic contents. The sections are concerned with the problems of defining, appreciating, and evaluating works of (...) art, "Problems concerning Fiction, Metaphor, Belief, and Artistic Truth," the epistemological tangles surrounding Aesthetic Experience, and "The Nature of Aesthetics and Aesthetic Theories." The price is a bit steep for a paper cover book.--E. A. R. (shrink)

We present a formal analysis of Douglas Hofstadter’s concept of superrationality. We start by defining superrationally justifiable actions, and study them in symmetric games. We then model the beliefs of the players, in a way that leads them to different choices than the usual assumption of rationality by restricting the range of conceivable choices. These beliefs are captured in the formal notion of type drawn from epistemic game theory. The theory of coalgebras is used to frame type spaces and (...) to account for the existence of some of them. We find conditions that guarantee superrational outcomes. (shrink)

(a review of “I Am a Strange Loop,” by Douglas Hofstadter), Scientific American, March 2007.

Cuando Searle propuso el experimento mental de La Pieza China hubo gran cantidad de objeciones. Aparentemente, muchas fueron contestadas convincentemente por él. Sin embargo, Dennett y Hofstadter plantearon una interesante crítica en 1981, una que no solo era aplicable a este experimento mental, sino a muchos otros posteriores en filosofía de la mente. En particular, apuntaron a la dudosa confiabilidad de los escenarios que favorecen intuiciones sobre la propia mente de un experimentador. Así, propusieron una nueva categoría: las “bombas (...) de intuiciones”. Curiosamente, Dennett también ha elaborado algunas bombas de intuiciones, y ello ha ocurrido pese a que no hay total claridad de cuándo es correcta la aplicación del término. En este trabajo argumento que la dificultad para caracterizar tanto dichas bombas como su utilidad no solo se explica por la naturaleza problemática de la mente, sino además por el dogmatismo que implican tanto el enfoque materialista como el dualista. (shrink)

Hofstadter [1979, 2007] offered a novel Gödelian proposal which purported to reconcile the apparently contradictory theses that (1) we can talk, in a non-trivial way, of mental causation being a real phenomenon and that (2) mental activity is ultimately grounded in low-level rule-governed neural processes. In this paper, we critically investigate Hofstadter’s analogical appeals to Gödel’s [1931] First Incompleteness Theorem, whose “diagonal” proof supposedly contains the key ideas required for understanding both consciousness and mental causation. We maintain that (...) bringing sophisticated results from Mathematical Logic into play cannot furnish insights which would otherwise be unavailable. Lastly, we conclude that there are simply too many weighty details left unfilled in Hofstadter’s proposal. These really need to be fleshed out before we can even hope to say that our understanding of classical mind-body problems has been advanced through metamathematical parallels with Gödel’s work. (shrink)

In 1979, Douglas Hofstadter published Gödel Escher Bach: An Eternal Golden Braid , a brilliant exploration of some of the most difficult and fascinating ideas at the heart of cognitive science: recursion, computation, reduction, holism, meaning, "jootsing" (jumping out of the system), "strange loops", and much, much more. What made the book's expositions so effective were a family of elaborate (and lovingly elaborated) analogies: the mind is like an anthill, a formal system is like a game, theorem and nontheorem (...) are like figure and ground, Bach's Inventions are like dialogues, and much, much more. The whole analogy-package was wrapped in layers of self-conscious reflection. "Anything you can do I can do meta-" was one of Doug's mottos, and of course he applied it, recursively, to everything he did. (shrink)

In their exhaustive study of the cognitive operation of analogy, Hofstadter and Sander arrive at a paradox: the creative and inexhaustible production of analogies in our thought must derive from a “reminding” operation based upon the availability of the detailed totality of our experience. Yet the authors see no way that our experience can be stored in the brain in such detail nor do they see how such detail could be accessed or retrieved such that the innumerable analogical remindings (...) we experience can occur. Analogy creation, then, should not be possible. The intent here is to sharpen and deepen our understanding of the paradox, emphasizing its criticality. It will be shown that the retrieval problem has its origins in the failure of memory theory to recognize the actual dynamic structure of events. This structure is comprised of invariance laws as per J. J. Gibson, and this event “invariance structure” is exactly what supports Hofstadter and Sander’s missing mechanism for analogical reminding. Yet these structures of invariants, existing only over optical flows, auditory flows, haptic flows, etc., are equally difficult to imagine being stored in a static memory, and thus only exacerbate the problem of the storage of experience in the brain. A possible route to the solution of this dilemma, based in the radical model of Bergson, is also sketched. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:Richard Hofstadter: An Intellectual BiographyBruce KuklickDavid S. Brown, Richard Hofstadter: An Intellectual BiographyChicago: University of Chicago Press, 2006. xxiv+291 pp. Notes, Bibliographic Essay, Sources, Students of Richard Hofstadter, Index. $27.50.In the mid-twentieth century Richard Hofstadter was one the finest historians of the United States. Uncommitted to work in primary sources, he was perhaps not at the level of Perry Miller, Vann Woodward, and Edmund (...) Morgan. But Hofstadter had a greater range and wider influence than these men, and the combination of intellectual and political history that he wrote was unique, as was the penetration of his intellect and his appealing sensibility.Hofstadter was born in Buffalo, New York, the son of a Lutheran mother and a father who was a secular Jew. The son went to the local University of Buffalo. While not as impoverished as this biography is inclined to make him, Dick Hofstadter "married up" after he fell in love with Felice Swados, the daughter of a Buffalo Jewish doctor who was also a student at the University. Swados introduced Hofstadter to the Marxist intellectual left of the 1930s, although he was himself a successful and intelligent student leader. In the years after their graduation, the couple had a tempestuous start to their marriage, but over the next several years they built a life in New York City. Felice became the medical columnist for Time; Dick productively completed a doctoral degree in history at Columbia University. They both continued their radical activities. In the late 1930s he was briefly a member of the American Communist Party, although Dick quickly resigned because of the authoritarian nature of the organization. Even then, however, he was more removed and skeptical than Felice, with more of an historian's impartiality and sense of the tragic. Felice's unambiguous commitments moved him, but Dick was, literally, only half-inclined to the Jewish left.Swados died of cancer in 1945, after they had moved to Washington, D.C., where Hofstadter was teaching at the University of Maryland. But a year later the devastated young man obtained a position at Columbia. At the same time he met and married Beatrice Kevitt, another capable woman with literary and editorial talent.In 1948 Hofstadter published what I still think is his masterwork, The American Political Tradition. A series of sharp portraits of leading politicians, [End Page 574] the book owed much to Hofstadter's leftist background. It was indebted to Marxist analyses, or at least to those of the sort promulgated by the great historian, Charles Beard, who saw economics as central to the study of national life. But Hofstadter did not see a clash between capitalists and their opponents in the United States. He viewed the entire tradition of American politicians as committed to a certain kind of exploitative social system, although his book did not quite have the edge suggested by this last phrase. Hofstadter became known as a "consensus" historian who had a monolithic sense of the American experience, although this monolith was not benign as was that of other practitioners of consensus.In the 1950s Hofstadter, now a prominent Columbia faculty member, moved away from some of the economic preconceptions of The American Political Tradition. Instead, in his two other important books, The Age of Reform (1955) and The Paranoid Style in American Politics (1965), he brought to bear on the American experience a group of concepts that he took from his study of the social sciences. Overall, these two books undermined his previous materialist interpretation of politics. Instead, Hofstadter found that irrational fears, psychological maladjustments, and concerns about status might motivate leaders and movements more than a rational appraisal of self-interest. In retrospect, this 1950s social science does not appear very enlightening, and so Hofstadter's absorption of it is not to be praised. On the other side, so many of his fellow historians attacked him for his interdisciplinary bent that his generous outreach looks more than daring. Hofstadter's own personal politics shifted, too. He became a staunch if critical defender of the social democratic liberalism of Franklin Roosevelt's New Deal and its impulses in the 1950s and 1960s.In... (shrink)

Hofstadter's collection of quirky essays is unified by its primary concern: to examine the way people perceive and think.