Counterfactual history — For other uses, see Counterfactual (disambiguation). Counterfactual history, also sometimes referred to as virtual history, is a form of historiography which attempts to answer what if questions known as counterfactuals.[1] It seeks to explore… … Wikipedia
Anaxagoras and the atomists — C.C.W.Taylor ANAXAGORAS In the course of the fifth century BC the political and cultural pre eminence of Athens attracted to the city a considerable number of intellectuals of various kinds from all over the Greek world. This phenomenon, the so… … History of philosophy
Problem of evil — Part of a series on God General conceptions … Wikipedia
science fiction — a form of fiction that draws imaginatively on scientific knowledge and speculation in its plot, setting, theme, etc. [1925 30] * * * Fiction dealing principally with the impact of actual or imagined science on society or individuals, or more… … Universalium
Fermi paradox — The Fermi paradox is the apparent contradiction between high estimates of the probability of the existence of extraterrestrial civilizations and the lack of evidence for, or contact with, such civilizations.The extreme age of the universe and its … Wikipedia
Belief revision — is the process of changing beliefs to take into account a new piece of information. The logical formalization of belief revision is researched in philosophy, in databases, and in artificial intelligence for the design of rational agents.What… … Wikipedia
Fantasy world — A fantasy world is a type of imaginary world, part of a fictional universe used in fantasy novels and games. Typical worlds involve magic or magical abilities [Brian Attebery, The Fantasy Tradition in American Literature , p 166 7, ISBN 0 253… … Wikipedia
applied logic — Introduction the study of the practical art of right reasoning. The formalism (formal logic) and theoretical results of pure logic can be clothed with meanings derived from a variety of sources within philosophy as well as from other… … Universalium
Interpretation of quantum mechanics — An interpretation of quantum mechanics is a statement which attempts to explain how quantum mechanics informs our understanding of nature. Although quantum mechanics has received thorough experimental testing, many of these experiments are open… … Wikipedia
pre-Columbian civilizations — Introduction the aboriginal American Indian (Mesoamerican Indian) cultures that evolved in Meso America (part of Mexico and Central America) and the Andean region (western South America) prior to Spanish exploration and conquest in the 16th … Universalium
