Certain cognitive and philosophical aspects of the concept of conceivability with intended or established diversion from reality are discussed. The “coherence gap problem” arises when certain fragments of the real world are replaced with imaginary situations while most details are ignored. Another issue, “the spectator problem”, concerns the participation of the conceiver himself in the world conceived. Three different examples of conceivability are used to illustrate our points, namely thought experiments in physics, a hypothetical world devoid of consciousness , and (...) virtual reality. (shrink)

In The Economics of Good and Evil, Sedlacek challenges widely-held beliefs about economics and culture by tracing the study and themes of economics throughout history.

As part of his program to unify linear algebra and geometry using the language of Clifford algebra, David Hestenes has constructed a (well-known) isomorphism between the conformal group and the orthogonal group of a space two dimensions higher, thus obtaining homogeneous coordinates for conformal geometry.(1) In this paper we show that this construction is the Clifford algebra analogue of a hyperbolic model of Euclidean geometry that has actually been known since Bolyai, Lobachevsky, and Gauss, and we explore its wider invariant (...) theoretic implications. In particular, we show that the Euclidean distance function has a very simple representation in this model, as demonstrated by J. J. Seidel.(18). (shrink)

“It is certainly no accident that precisely here, in this region of continual threats to, and continual defence of one's own identity — whether personal, cultural or national identity — there is such a long tradition of the idea of truth, a truth for which one must pay, the truth as a moral value. One constantly runs up against this tradition, from Cyril and Methodius to Hus and Masaryk, Stefanik and Patocka”. This citation from a lecture entitled “Morality and Politics” (...) provides a brief sketch of the background to the thought of the current Czech president, Vaclav Havel.Though lacking any academic training in philosophy, Havel was strongly influenced by the ideas of the philosophy professor from Prague, and founder of Charta 77, Jan Patocka. Inspired by some of Patocka's last writings, in 1978 Havel wrote an essay on Charta 77 which was dedicated to Patocka. The title of this essay was taken from one of Patocka's central statements: Attempt to Live in the Truth. Patocka's influence is also clearly evident in `Letters to Olga', in his speeches as president and in his thinking on Europe.Havel's thought, via the thought of Patocka, must be situated within a dual tradition. On the one hand it is rooted in Czech history. Patocka had already in his early writings thematized the ideas of Thomas Masaryk. The work of Masaryk, who became the first president of the new Czech republic after the fall of the Austro-Hungarian monarchy, is characterized by an awareness of the crisis of rationality, like in the later Husserl. On the other hand Havel's thought, again by way of Patocka, is rooted in a phenomenology that is primarily oriented toward Germany. Patocka is often regarded as the interpreter par excellence of the dialogue between Husserl and Heidegger.This article is based on a speech given by President Havel during the 50th anniversary commemoration of the Universal Declaration for Human Rights, in Geneva, March 16, 1998. (shrink)

Judaism and Christianity are religions whose theological epistemology is based on revelation. The primary source of revelation is Holy Scripture. However, history has also been recognised as a source of revelation, particularly the history of Israel and the Jewish people. Because they understood history as a source of revelation, many religious Jews altered their understanding of Jewish statehood in Eretz Israel during the twentieth century, from distinctly averse to increasingly supportive. On the same principles, the Catholic Church made arguably the (...) most profound change in its theology in the twentieth century, concerning its understanding of Jews and Judaism. This was prompted by an­­other major historical event, the Shoah. While in Judaism the historical phenom­enon of the State of Israel profoundly influenced theology, another historical phenomenon, the Shoah, was theologically approached with far more unease and ambiguity. In the Catholic Church, in contrast, the historical phenomenon of the Shoah prompted a serious reconsideration of certain tenets of theology, includ­ing soteriology, while the historical phenomenon of the State of Israel did not. This article addresses this apparent contradiction comparatively. (shrink)

This guest column amounts to a conversation between two of the crucial figures in the world of Soviet bloc dissidents about developments in their part of the world since the overthrow of communism there in 1989. They agree that a “creeping coup d'état” is underway, in which not only the government administrations of their countries have changed, but also their systems of governance—for the worse. “It is not,” they agree, “what the democratic opposition spent twenty-five years fighting for.” Their apprehension (...) is that, under new forms, the old authoritarian impulses are returning to East-Central Europe as well as Russia. (shrink)

This guest column amounts to a conversation between two of the most crucial Soviet bloc dissidents about developments since the 1989 overthrow of communismin their part of the world. They agree that a “creeping coup d’état” is underway in which not only the government administrations of their countries have changed but also their systems of governance—and changed for the worse. “It is not,” they agree, “what the democratic opposition spent twenty-five years fighting for.” Their apprehension is that, under new forms, (...) the old authoritarian impulses are returning to East-Central Europe as well as to Russia. (shrink)

In this, the first published collection of writings by Hippolyte Havel (1871–1950), Nathan Jun brings a crucial, yet largely forgotten revolutionary figure back into historical focus. Havel was a Czech anarchist at the center of New York’s political and artistic circles at the turn of the twentieth century. He was an editor of numerous publications, including Emma Goldman’s Mother Earth and his influence on several writers, artists, and intellectuals (including Eugene O’Neill, Joseph Stieglitz, and Sadakichi Hartmann) helped shape American modernism. (...) Proletarian Days provides an illuminating introduction to the man and his times. (shrink)