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🔗 Philosophy 🔗 Psychology 🔗 Philosophy/Ancient philosophy 🔗 Philosophy/Ethics

Akrasia (; Greek ἀκρασία, "lacking command" or "weakness", occasionally transliterated as acrasia or Anglicised as acrasy or acracy) is a lack of self-control, or acting against one's better judgment. Beginning with Plato, a variety of philosophers have attempted to determine whether or not akrasia exists and how to best define it.

🔗 Biography 🔗 Computing 🔗 Mathematics 🔗 Military history 🔗 Military history/North American military history 🔗 Military history/United States military history 🔗 Military history/Military science, technology, and theory 🔗 Physics 🔗 Economics 🔗 Philosophy 🔗 Philosophy/Logic 🔗 Biography/science and academia 🔗 Philosophy/Philosophy of science 🔗 Philosophy/Contemporary philosophy 🔗 Military history/Military biography 🔗 Biography/military biography 🔗 History of Science 🔗 Computing/Computer science 🔗 Philosophy/Philosophers 🔗 Education 🔗 Hungary 🔗 Military history/World War II 🔗 Military history/Cold War 🔗 Physics/History 🔗 Physics/Biographies 🔗 Game theory 🔗 Eastern Europe

John von Neumann (; Hungarian: Neumann János Lajos, pronounced [ˈnɒjmɒn ˈjaːnoʃ ˈlɒjoʃ]; December 28, 1903 – February 8, 1957) was a Hungarian-American mathematician, physicist, computer scientist, engineer and polymath. Von Neumann was generally regarded as the foremost mathematician of his time and said to be "the last representative of the great mathematicians"; who integrated both pure and applied sciences.

He made major contributions to a number of fields, including mathematics (foundations of mathematics, functional analysis, ergodic theory, representation theory, operator algebras, geometry, topology, and numerical analysis), physics (quantum mechanics, hydrodynamics, and quantum statistical mechanics), economics (game theory), computing (Von Neumann architecture, linear programming, self-replicating machines, stochastic computing), and statistics.

He was a pioneer of the application of operator theory to quantum mechanics in the development of functional analysis, and a key figure in the development of game theory and the concepts of cellular automata, the universal constructor and the digital computer.

He published over 150 papers in his life: about 60 in pure mathematics, 60 in applied mathematics, 20 in physics, and the remainder on special mathematical subjects or non-mathematical ones. His last work, an unfinished manuscript written while he was in hospital, was later published in book form as The Computer and the Brain.

His analysis of the structure of self-replication preceded the discovery of the structure of DNA. In a short list of facts about his life he submitted to the National Academy of Sciences, he stated, "The part of my work I consider most essential is that on quantum mechanics, which developed in Göttingen in 1926, and subsequently in Berlin in 1927–1929. Also, my work on various forms of operator theory, Berlin 1930 and Princeton 1935–1939; on the ergodic theorem, Princeton, 1931–1932."

During World War II, von Neumann worked on the Manhattan Project with theoretical physicist Edward Teller, mathematician Stanisław Ulam and others, problem solving key steps in the nuclear physics involved in thermonuclear reactions and the hydrogen bomb. He developed the mathematical models behind the explosive lenses used in the implosion-type nuclear weapon, and coined the term "kiloton" (of TNT), as a measure of the explosive force generated.

After the war, he served on the General Advisory Committee of the United States Atomic Energy Commission, and consulted for a number of organizations, including the United States Air Force, the Army's Ballistic Research Laboratory, the Armed Forces Special Weapons Project, and the Lawrence Livermore National Laboratory. As a Hungarian émigré, concerned that the Soviets would achieve nuclear superiority, he designed and promoted the policy of mutually assured destruction to limit the arms race.

🔗 Biography 🔗 Computing 🔗 London 🔗 Philosophy 🔗 Philosophy/Logic 🔗 Business 🔗 England 🔗 Biography/science and academia 🔗 Philosophy/Philosophers 🔗 Philately 🔗 Biography/Core biographies

Charles Babbage (; 26 December 1791 – 18 October 1871) was an English polymath. A mathematician, philosopher, inventor and mechanical engineer, Babbage originated the concept of a digital programmable computer.

Considered by some to be a father of the computer, Babbage is credited with inventing the first mechanical computer that eventually led to more complex electronic designs, though all the essential ideas of modern computers are to be found in Babbage's Analytical Engine. His varied work in other fields has led him to be described as "pre-eminent" among the many polymaths of his century.

Parts of Babbage's incomplete mechanisms are on display in the Science Museum in London. In 1991, a functioning difference engine was constructed from Babbage's original plans. Built to tolerances achievable in the 19th century, the success of the finished engine indicated that Babbage's machine would have worked.

🔗 Philosophy

The Tinkerbell effect is an American English expression describing things that are thought to exist only because people believe in them. The effect is named after Tinker Bell, the fairy in the play Peter Pan, who is revived from near death by the belief of the audience.

Another form is called the Reverse Tinkerbell effect, a term coined by David Post in 2003. It stipulates that the more you believe in something the more likely it is to vanish. For example, as more people believe that driving is safe, more people will drive carelessly, in turn making driving less safe.

🔗 History 🔗 Economics 🔗 Philosophy 🔗 Business 🔗 Philosophy/Ethics

A perverse incentive is an incentive that has an unintended and undesirable result that is contrary to the intentions of its designers. The cobra effect is the most direct kind of perverse incentive, typically because the incentive unintentionally rewards people for making the issue worse. The term is used to illustrate how incorrect stimulation in economics and politics can cause unintended consequences.

🔗 France 🔗 Novels 🔗 Philosophy 🔗 Philosophy/Philosophical literature 🔗 Philosophy/Social and political philosophy 🔗 Philosophy/Continental philosophy 🔗 Algeria

The Plague (French: La Peste) is a novel by Albert Camus, published in 1947, that tells the story of a plague sweeping the French Algerian city of Oran. It asks a number of questions relating to the nature of destiny and the human condition. The characters in the book, ranging from doctors to vacationers to fugitives, all help to show the effects the plague has on a populace.

The novel is believed to be based on the cholera epidemic that killed a large percentage of Oran's population in 1849 following French colonization, but the novel is placed in the 1940s. Oran and its surroundings were struck by disease multiple times before Camus published this novel. According to a research report by the Centers for Disease Control and Prevention, Oran was decimated by the plague in 1556 and 1678, but all later outbreaks, in 1921 (185 cases), 1931 (76 cases), and 1944 (95 cases), were very far from the scale of the epidemic described in the novel.

The Plague is considered an existentialist classic despite Camus' objection to the label. The narrative tone is similar to Kafka's, especially in The Trial whose individual sentences potentially have multiple meanings, the material often pointedly resonating as stark allegory of phenomenal consciousness and the human condition.

Camus included a dim-witted character misreading The Trial as a mystery novel as an oblique homage. The novel has been read as an allegorical treatment of the French resistance to Nazi occupation during World War II. Additionally, he further illustrates the human reaction towards the "absurd". The Plague represents how the world deals with the philosophical notion of the Absurd, a theory that Camus himself helped to define.

🔗 Philosophy 🔗 Philosophy/Logic 🔗 Philosophy/Contemporary philosophy 🔗 Philosophy/Philosophy of mind 🔗 Philosophy/Analytic philosophy

The Chinese room argument holds that a digital computer executing a program cannot be shown to have a "mind", "understanding" or "consciousness", regardless of how intelligently or human-like the program may make the computer behave. The argument was first presented by philosopher John Searle in his paper, "Minds, Brains, and Programs", published in Behavioral and Brain Sciences in 1980. It has been widely discussed in the years since. The centerpiece of the argument is a thought experiment known as the Chinese room.

The argument is directed against the philosophical positions of functionalism and computationalism, which hold that the mind may be viewed as an information-processing system operating on formal symbols. Specifically, the argument is intended to refute a position Searle calls strong AI: "The appropriately programmed computer with the right inputs and outputs would thereby have a mind in exactly the same sense human beings have minds."

Although it was originally presented in reaction to the statements of artificial intelligence (AI) researchers, it is not an argument against the behavioural goals of AI research, because it does not limit the amount of intelligence a machine can display. The argument applies only to digital computers running programs and does not apply to machines in general.

🔗 Philosophy 🔗 Skepticism 🔗 Classical Greece and Rome 🔗 Greece 🔗 Philosophy/Ancient philosophy

A sophist (Greek: σοφιστής, romanized: sophistēs) was a professional travelling teacher in ancient Greece in the fifth and fourth centuries BC. Sophists specialized in one or more subject areas, such as philosophy, rhetoric, music, athletics, mathematics, and arete: "virtue" or "excellence". The sophists sold their tutoring expertise predominantly to young statesmen and nobility. Certain sophists are regarded as philosophers in their own right. The first credited sophist, Protagoras, argued that "man is the measure of all things", and he controversially would strive to "make the weaker argument the stronger".

The arts of the sophists were known as sophistry and gained a negative reputation as arbitrary, inauthentic, or deceptive styles of reasoning, beginning with the notable philosophers of Classical Athens who criticized sophists for valuing artistic speech or cleverness in debate over a genuine pursuit of truth and knowledge. Thus, in modern usage, sophism, sophist, and sophistry are used disparagingly. Sophistry, or a sophism, is a fallacious argument, especially one used deliberately to deceive. Today, a sophist is a person who reasons with clever but deceptive or intellectually dishonest arguments.

🔗 Philosophy 🔗 Philosophy/Logic

Abductive logic programming (ALP) is a high-level knowledge-representation framework that can be used to solve problems declaratively based on abductive reasoning. It extends normal logic programming by allowing some predicates to be incompletely defined, declared as abducible predicates. Problem solving is effected by deriving hypotheses on these abducible predicates (abductive hypotheses) as solutions of problems to be solved. These problems can be either observations that need to be explained (as in classical abduction) or goals to be achieved (as in normal logic programming). It can be used to solve problems in diagnosis, planning, natural language and machine learning. It has also been used to interpret negation as failure as a form of abductive reasoning.

🔗 Philosophy 🔗 Philosophy/Philosophical literature 🔗 Philosophy/Logic 🔗 Philosophy/Modern philosophy 🔗 Philosophy/Continental philosophy

The Art of Being Right: 38 Ways to Win an Argument (also The Art of Controversy, or Eristic Dialectic: The Art of Winning an Argument; German: Eristische Dialektik: Die Kunst, Recht zu behalten; 1831) is an acidulous, sarcastic treatise written by the German philosopher Arthur Schopenhauer. In it, Schopenhauer examines a total of thirty-eight methods of showing up one's opponent in a debate. He introduces his essay with the idea that philosophers have concentrated in ample measure on the rules of logic, but have not (especially since the time of Immanuel Kant) engaged with the darker art of the dialectic, of controversy. Whereas the purpose of logic is classically said to be a method of arriving at the truth, dialectic, says Schopenhauer, "...on the other hand, would treat of the intercourse between two rational beings who, because they are rational, ought to think in common, but who, as soon as they cease to agree like two clocks keeping exactly the same time, create a disputation, or intellectual contest."