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๐ Gell-Mann amnesia effect
John Michael Crichton (; October 23, 1942 โ November 4, 2008) was an American author, screenwriter, film director, and film producer. His books have sold over 200 million copies worldwide, and over a dozen have been adapted into films. His literary works are usually within the science fiction, techno-thriller, and medical fiction genres, and heavily feature technology. His novels often explore technology and failures of human interaction with it, especially resulting in catastrophes with biotechnology. Many of his novels have medical or scientific underpinnings, reflecting his medical training and scientific background. He wrote, among other works, The Andromeda Strain (1969), The Great Train Robbery (1975), Congo (1980), Sphere (1987), Jurassic Park (1990), Rising Sun (1992), Disclosure (1994), The Lost World (1995), Airframe (1996), Timeline (1999), Prey (2002), State of Fear (2004), and Next (2006). Films he wrote and directed included Westworld (1973), Coma (1978), The Great Train Robbery (1979), Looker (1981), and Runaway (1984).
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- "Gell-Mann amnesia effect" | 2018-09-17 | 361 Upvotes 162 Comments
๐ Python syntax and semantics
The syntax of the Python programming language is the set of rules that defines how a Python program will be written and interpreted (by both the runtime system and by human readers). The Python language has many similarities to Perl, C, and Java. However, there are some definite differences between the languages.
๐ Avoidance Speech
Avoidance speech is a group of sociolinguistic phenomena in which a special restricted speech style must be used in the presence of or in reference to certain relatives. Avoidance speech is found in many Australian Aboriginal languages and Austronesian languages as well as some North American languages, Highland East Cushitic languages and Southern Bantu languages. Chinese naming taboo prohibits speaking and writing syllables or characters that appear in the names of esteemed people, such as emperors, parents, and ancestors.
Avoidance speech styles tend to have the same phonology and grammar as the standard language they are a part of. The lexicon, however, tends to be smaller than in normal speech since the styles are only used for limited communication.
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- "Avoidance Speech" | 2023-04-07 | 93 Upvotes 93 Comments
๐ Digital Infinity
Digital infinity is a technical term in theoretical linguistics. Alternative formulations are "discrete infinity" and "the infinite use of finite means". The idea is that all human languages follow a simple logical principle, according to which a limited set of digitsโirreducible atomic sound elementsโare combined to produce an infinite range of potentially meaningful expressions.
'Language is, at its core, a system that is both digital and infinite. To my knowledge, there is no other biological system with these properties....'
It remains for us to examine the spiritual element of speech ... this marvelous invention of composing from twenty-five or thirty sounds an infinite variety of words, which, although not having any resemblance in themselves to that which passes through our minds, nevertheless do not fail to reveal to others all of the secrets of the mind, and to make intelligible to others who cannot penetrate into the mind all that we conceive and all of the diverse movements of our souls.
Noam Chomsky cites Galileo as perhaps the first to recognise the significance of digital infinity. This principle, notes Chomsky, is "the core property of human language, and one of its most distinctive properties: the use of finite means to express an unlimited array of thoughts". In his Dialogo, Galileo describes with wonder the discovery of a means to communicate one's "most secret thoughts to any other person ... with no greater difficulty than the various collocations of twenty-four little characters upon a paper." "This is the greatest of all human inventions," Galileo continues, noting it to be "comparable to the creations of a Michelangelo".
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- "Digital Infinity" | 2023-03-10 | 50 Upvotes 38 Comments
๐ Sangaku
Sangaku or San Gaku (็ฎ้ก; lit. translation: calculation tablet) are Japanese geometrical problems or theorems on wooden tablets which were placed as offerings at Shinto shrines or Buddhist temples during the Edo period by members of all social classes.
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- "Sangaku" | 2017-03-01 | 55 Upvotes 2 Comments
๐ Tobler's First Law of Geography
The First Law of Geography, according to Waldo Tobler, is "everything is related to everything else, but near things are more related than distant things." This first law is the foundation of the fundamental concepts of spatial dependence and spatial autocorrelation and is utilized specifically for the inverse distance weighting method for spatial interpolation and to support the regionalized variable theory for kriging. It is a modern formulation of David Hume's principle of contiguity.
Tobler first presented his seminal idea during a meeting of the International Geographical Union's Commission on Qualitative Methods held in 1969 and later published by him in 1970. Though simple in its presentation, this idea is profound. Without it, "the full range of conditions anywhere on the Earth's surface could in principle be found packed within any small area. There would be no regions of approximately homogeneous conditions to be described by giving attributes to area objects. Topographic surfaces would vary chaotically, with slopes that were everywhere infinite, and the contours of such surfaces would be infinitely dense and contorted. Spatial analysis, and indeed life itself, would be impossible."
Less well known is his second law, which complements the first: "The phenomenon external to an area of interest affects what goes on inside".
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- "Tobler's First Law of Geography" | 2020-10-30 | 63 Upvotes 17 Comments
๐ Searches for Noah's Ark
Searches for Noah's Ark have been reported since antiquity, as ancient scholars sought to affirm the historicity of the Genesis flood narrative by citing accounts of relics recovered from the Ark.:โ43โ47โ With the emergence of biblical archaeology in the 19th century, the potential of a formal search attracted interest in alleged discoveries and hoaxes. By the 1940s, expeditions were being organized to follow up on these apparent leads.:โ8โ9โ This modern search movement has been informally called "arkeology".
In 2020, the young Earth creationist group the Institute for Creation Research acknowledged that, despite many expeditions, Noah's Ark had not been found and is unlikely to be found. Many of the supposed findings and methods used in the search are regarded as pseudoscience and pseudoarchaeology by geologists and archaeologists.:โ581โ582โ:โ72โ75โ
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- "Searches for Noah's Ark" | 2023-10-05 | 33 Upvotes 56 Comments
๐ Simulacra and Simulation
Simulacra and Simulation (French: Simulacres et Simulation) is a 1981 philosophical treatise by Jean Baudrillard, in which the author seeks to examine the relationships between reality, symbols, and society, in particular the significations and symbolism of culture and media involved in constructing an understanding of shared existence.
Simulacra are copies that depict things that either had no original, or that no longer have an original. Simulation is the imitation of the operation of a real-world process or system over time.
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- "Simulacra and Simulation" | 2020-05-12 | 135 Upvotes 79 Comments
- "Simulacra and Simulation" | 2017-09-24 | 139 Upvotes 93 Comments
๐ Antarctic Snow Cruiser
The Antarctic Snow Cruiser was a vehicle designed from 1937 to 1939 under the direction of Thomas Poulter, intended to facilitate transport in Antarctica during the United States Antarctic Service Expedition (1939โ41). The Snow Cruiser was also known as "The Penguin," "Penguin 1" or "Turtle" in some published material.
Poulter had been second in command of Byrd's Second Antarctic Expedition, launched in 1934. From his time in the Antarctic, Poulter had devised several innovative features. However, the massive Snow Cruiser generally failed to operate as hoped under the difficult conditions, and was eventually abandoned in Antarctica. Rediscovered under a deep layer of snow in 1958, it later disappeared again due to shifting ice conditions.
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- "Antarctic Snow Cruiser" | 2020-03-09 | 89 Upvotes 52 Comments
๐ Molle
MOLLE (pronounced , similar in pronunciation to the name Molly) is an acronym for Modular Lightweight Load-carrying Equipment. It is used to define the current generation of load-bearing equipment and backpacks used by a number of NATO armed forces, especially the British Army and the United States Army.
The system's modularity is derived from the use of Pouch Attachment Ladder System (PALS) webbing equipment as rows of heavy-duty nylon stitched onto the vest to allow for the attachment of various compatible pouches and accessories. This method of attachment has become a de facto standard for modular tactical gear, replacing the All-purpose Lightweight Individual Carrying Equipment (ALICE) system used in the earliest modular vest systems (which is still in use with many police forces).
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- "Molle" | 2022-04-03 | 12 Upvotes 2 Comments