Random Articles (Page 2)
Have a deep view into what people are curious about.
π Kakistocracy
A kakistocracy [kΓ¦kΙͺ'stΙkrΙsi] is a system of government that is run by the worst, least qualified, and/or most unscrupulous citizens. The word was coined as early as the seventeenth century, but gained significant use in the first decades of the 20th century to criticize populist governments emerging in different democracies around the world.
Discussed on
- "Kakistocracy" | 2025-01-29 | 15 Upvotes 5 Comments
- "Kakistocracy" | 2020-04-10 | 28 Upvotes 12 Comments
π Comparative Illusion
In linguistics, comparative illusions (CIs) or Escher sentences are certain comparative sentences which initially seem to be acceptable but upon closer reflection have no well-formed meaning. The typical example sentence used to typify this phenomenon is More people have been to Russia than I have. The effect has also been observed in other languages. Some studies have suggested that, at least in English, the effect is stronger for sentences whose predicate is repeatable. The effect has also been found to be stronger in some cases when there is a plural subject in the second clause.
Discussed on
- "Comparative Illusion" | 2022-02-07 | 77 Upvotes 24 Comments
π Ludic Fallacy
The ludic fallacy, identified by Nassim Nicholas Taleb in his book The Black Swan (2007), is "the misuse of games to model real-life situations". Taleb explains the fallacy as "basing studies of chance on the narrow world of games and dice". The adjective ludic originates from the Latin noun ludus, meaning "play, game, sport, pastime".
Discussed on
- "Ludic Fallacy" | 2020-07-23 | 119 Upvotes 79 Comments
π Nomic
Nomic is a game created in 1982 by philosopher Peter Suber in which the rules of the game include mechanisms for the players to change those rules, usually beginning through a system of democratic voting.
Nomic is a game in which changing the rules is a move. In that respect it differs from almost every other game. The primary activity of Nomic is proposing changes in the rules, debating the wisdom of changing them in that way, voting on the changes, deciding what can and cannot be done afterwards, and doing it. Even this core of the game, of course, can be changed.
The initial ruleset was designed by Peter Suber, and first published in Douglas Hofstadter's column Metamagical Themas in Scientific American in June 1982. The column discussed Suber's then-upcoming book, The Paradox of Self-Amendment, which was published some years later. Nomic now refers to many games, all based on the initial ruleset.
The game is in some ways modeled on modern government systems. It demonstrates that in any system where rule changes are possible, a situation may arise in which the resulting laws are contradictory or insufficient to determine what is in fact legal. Because the game models (and exposes conceptual questions about) a legal system and the problems of legal interpretation, it is named after Ξ½ΟΞΌΞΏΟ (nomos), Greek for "law".
While the victory condition in Suber's initial ruleset is the accumulation of 100 points by the roll of dice, he once said that "this rule is deliberately boring so that players will quickly amend it to please themselves". Players can change the rules to such a degree that points can become irrelevant in favor of a true currency, or make victory an unimportant concern. Any rule in the game, including the rules specifying the criteria for winning and even the rule that rules must be obeyed, can be changed. Any loophole in the ruleset, however, may allow the first player to discover it the chance to pull a "scam" and modify the rules to win the game. Complicating this process is the fact that Suber's initial ruleset allows for the appointment of judges to preside over issues of rule interpretation.
Discussed on
- "Nomic" | 2012-12-08 | 242 Upvotes 84 Comments
- "Nomic: a game in which changing the rules is a move" | 2009-06-21 | 22 Upvotes 9 Comments
π Pattern theory
Pattern theory, formulated by Ulf Grenander, is a mathematical formalism to describe knowledge of the world as patterns. It differs from other approaches to artificial intelligence in that it does not begin by prescribing algorithms and machinery to recognize and classify patterns; rather, it prescribes a vocabulary to articulate and recast the pattern concepts in precise language. Broad in its mathematical coverage, Pattern Theory spans algebra and statistics, as well as local topological and global entropic properties.
In addition to the new algebraic vocabulary, its statistical approach is novel in its aim to:
- Identify the hidden variables of a data set using real world data rather than artificial stimuli, which was previously commonplace.
- Formulate prior distributions for hidden variables and models for the observed variables that form the vertices of a Gibbs-like graph.
- Study the randomness and variability of these graphs.
- Create the basic classes of stochastic models applied by listing the deformations of the patterns.
- Synthesize (sample) from the models, not just analyze signals with them.
The Brown University Pattern Theory Group was formed in 1972 by Ulf Grenander. Many mathematicians are currently working in this group, noteworthy among them being the Fields Medalist David Mumford. Mumford regards Grenander as his "guru" in Pattern Theory.
π List of probability distributions
Many probability distributions that are important in theory or applications have been given specific names.
Discussed on
- "List of probability distributions" | 2013-05-25 | 47 Upvotes 36 Comments
π Now and Then (Beatles Song)
"Now and Then" is a song by the English rock band the Beatles. It was released on 2 November 2023, dubbed "the last Beatles song." It appeared on a double A-side single, paired with a new mix of the band's first single, "Love Me Do" (1962), with the two serving as "bookends" to the band's history. Both songs are to be included on the expanded re-issues of the 1973 compilations 1962β1966 and 1967β1970, to be released on 10 November 2023.
"Now and Then" is a psychedelic rock ballad. John Lennon wrote and recorded it around 1977 as a solo piano home demo, but left it unfinished. After Lennon's death in 1980, the song was considered as the third Beatles reunion single for their 1995β1996 retrospective project The Beatles Anthology, following "Free as a Bird" and "Real Love", both based on Lennon's demos. Instead, it was shelved for nearly three decades. It was later completed by the surviving bandmates Paul McCartney and Ringo Starr, with overdubs and included guitar tracks by George Harrison from the abandoned 1995 sessions.
The final version features additional lyrics by McCartney, and Lennon's voice extracted from the demo using the AI-backed audio restoration technology commissioned by Peter Jackson for his 2021 documentary The Beatles: Get Back. Jackson also directed the music video for "Now and Then". The song received acclaim from critics, who felt it was a worthy finale for the Beatles.
π Judas goat
A Judas goat is a trained goat used in general animal herding. The Judas goat is trained to associate with sheep or cattle, leading them to a specific destination. In stockyards, a Judas goat will lead sheep to slaughter, while its own life is spared. Judas goats are also used to lead other animals to specific pens and onto trucks. They have fallen out of use in recent times, but can still be found in various smaller slaughterhouses in some parts of the world, as well as conservation projects.
Cattle herders may use a Judas steer to serve the same purpose as a Judas goat. The technique, and the term, originated from cattle drives in the United States in the 1800s.
The term is a reference to Judas Iscariot, an apostle of Jesus Christ who betrayed Jesus in the Bible.
Discussed on
- "Judas goat" | 2023-10-25 | 211 Upvotes 141 Comments
π Bert Sutherland Has Died
William Robert Sutherland (May 10, 1936Β β February 18, 2020) was an American computer scientist who was the longtime manager of three prominent research laboratories, including Sun Microsystems Laboratories (1992β1998), the Systems Science Laboratory at Xerox PARC (1975β1981), and the Computer Science Division of Bolt, Beranek and Newman, Inc. which helped develop the ARPANET.
In these roles, Sutherland participated in the creation of the personal computer, the technology of advanced microprocessors, the Smalltalk programming language, the Java programming language and the Internet.
Unlike traditional corporate research managers, Sutherland added individuals from fields like psychology, cognitive science, and anthropology to enhance the work of his technology staff. He also directed his scientists to take their research, like the Xerox Alto "personal" computer, outside of the laboratory to allow people to use it in a corporate setting and to observe their interaction with it.
In addition, Sutherland fostered a collaboration between the researchers at California Institute of Technology developing techniques of very large scale integrated circuits (VLSI)Β β his brother Ivan and Carver MeadΒ β and Lynn Conway of his PARC staff. With PARC resources made available by Sutherland, Mead and Conway developed a textbook and university syllabus that helped expedite the development and distribution of a technology whose effect is now immeasurable.
Sutherland said that a research lab is primarily a teaching institution, "teaching whatever is new so that the new can become familiar, old, and used widely."
Sutherland was born in Hastings, Nebraska on May 10, 1936, to a father from New Zealand; his mother was from Scotland. The family moved to Wilmette, Illinois, then Scarsdale, New York, for his father's career. Bert Sutherland graduated from Scarsdale High School, then received his bachelor's degree in electrical engineering from Rensselaer Polytechnic Institute (RPI), and his master's degree and Ph.D. from Massachusetts Institute of Technology (MIT); his thesis advisor was Claude Shannon. During his military service in the United States Navy, he was awarded the Legion of Merit as a Carrier ASW plane commander. He was the older brother of Ivan Sutherland. Bert Sutherland died on February 18, 2020, aged 83.
Discussed on
- "Bert Sutherland Has Died" | 2020-02-19 | 680 Upvotes 33 Comments
π Buddhas of Bamiyan
The Buddhas of Bamiyan were two 6th-century monumental statues of Vairocana Buddha and Gautama Buddha carved into the side of a cliff in the Bamyan valley of central Afghanistan, 130 kilometres (81Β mi) northwest of Kabul at an elevation of 2,500 metres (8,200Β ft). Carbon dating of the structural components of the Buddhas has determined that the smaller 38Β m (125Β ft) "Eastern Buddha" was built around 570 AD, and the larger 55Β m (180Β ft) "Western Buddha" was built around 618 AD.
The statues represented a later evolution of the classic blended style of Gandhara art. The statues consisted of the male Salsal ("light shines through the universe") and the (smaller) female Shamama ("Queen Mother"), as they were called by the locals. The main bodies were hewn directly from the sandstone cliffs, but details were modeled in mud mixed with straw, coated with stucco. This coating, practically all of which wore away long ago, was painted to enhance the expressions of the faces, hands, and folds of the robes; the larger one was painted carmine red and the smaller one was painted multiple colors. The lower parts of the statues' arms were constructed from the same mud-straw mix supported on wooden armatures. It is believed that the upper parts of their faces were made from great wooden masks or casts. The rows of holes that can be seen in photographs held wooden pegs that stabilized the outer stucco.
The Buddhas are surrounded by numerous caves and surfaces decorated with paintings. It is thought that the period of florescence was from the 6th to 8th century AD, until the onset of Islamic invasions. These works of art are considered as an artistic synthesis of Buddhist art and Gupta art from India, with influences from the Sasanian Empire and the Byzantine Empire, as well as the country of Tokharistan.
The statues were blown up and destroyed in March 2001 by the Taliban, on orders from leader Mullah Mohammed Omar, after the Taliban government declared that they were idols. International and local opinion strongly condemned the destruction of the Buddhas. Some Taliban sources credited Omar's decision to blow up the Buddha statues to the growing influence of Osama bin Laden.