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Law of physics
In cosmology, the past hypothesis is a fundamental law of physics that postulates that the universe started in a low-entropy state, in accordance with
Past_hypothesis
American academic (born 1954)
(1) these dynamical laws, but also (2) a past hypothesis and (3) a statistical postulate. The past hypothesis is a claim that the universe was in a very
David_Albert
Thought experiment to assess ability to detect evidence of a prior advanced civilization
anomalies in sediment, or traces of nuclear waste. The hypothesis also speculated that artifacts from past civilizations might be found on the Moon and Mars
Silurian_hypothesis
Hypothesis in physics
associates the initial low entropy content of the universe or the past hypothesis with the effective vanishing of the Weyl curvature tensor of the cosmological
Weyl_curvature_hypothesis
Scientific assessments on the microbial habitability of Titan
of Titan, and may be significant pathways, in terms of the PAH world hypothesis, in producing precursors to biochemicals related to life as we know it
Life_on_Titan
Conjecture on zeros of the zeta function
half? More unsolved problems in mathematics In mathematics, the Riemann hypothesis is the conjecture that the Riemann zeta function has its zeros only at
Riemann_hypothesis
Hypothesis that reality could be a computer simulation
The simulation hypothesis proposes that what one experiences as the real world is actually a simulated reality, such as a computer simulation in which
Simulation_hypothesis
Creationist hypothesis
The Omphalos hypothesis is one attempt to reconcile the scientific evidence that the Earth is billions of years old with a literal interpretation of the
Omphalos_hypothesis
Cosmological model
satisfies the Weyl curvature hypothesis, thus providing a certain kind of low-entropy past as required by the past hypothesis, statistical mechanics and
Conformal_cyclic_cosmology
Idea that any intelligent life is destroyed by aliens
The Berserker hypothesis, also known as the deadly probes scenario, is the idea that humans have not yet detected intelligent alien life in the universe
Berserker_hypothesis
Science fiction book trilogy by Liu Cixin
Remembrance of Earth's Past such as: messaging extraterrestrial civilisations; gravitational wave transmitter; dark forest hypothesis; space elevator; artificial
Remembrance_of_Earth's_Past
Concept of rebirth in different physical form
noting their beliefs to have substantial differences, and found the hypothesis of early contact historically unlikely. Nonetheless, he proposed the possibility
Reincarnation
Concept developed by Ufologists
The time-traveler hypothesis, also known as chrononaut UFO, future humans, extratempestrial model, and Terminator theory, is the proposal that unidentified
Time-traveler_UFO_hypothesis
Hypothesis on why humans have menopause
The grandmother hypothesis is a hypothesis to explain the existence of menopause in human life history by identifying the adaptive value of extended kin
Grandmother_hypothesis
Hypothesis to explain the origins and composition of the Torah
In bibliology, the documentary hypothesis (DH) is one of the models used by biblical scholars to explain the origins and composition of the Torah (or Pentateuch)
Documentary_hypothesis
Interplay between observation, experiment, and theory in science
acquiring knowledge through careful observation, rigorous skepticism, hypothesis testing, and experimental validation. Developed from ancient and medieval
Scientific_method
Suggestion of an alien civilization on Earth
The cryptoterrestrial hypothesis proposes that reports of flying saucers or UFOs are evidence of a hidden, Earth-based, technologically advanced civilization
Cryptoterrestrial_hypothesis
Pseudoscientific claims of past alien contact
Däniken's works, although it also received limited consideration as a serious hypothesis. Critics emerged throughout the 1970s, discrediting Von Däniken's claims
Ancient_astronauts
Hypothesis of the formation of the Moon
The giant-impact hypothesis, sometimes called the Theia Impact, is an astrogeology hypothesis for the formation of the Moon first proposed in 1946 by Canadian
Giant-impact_hypothesis
Proposal that humans evolved certain features due to filling a semi-aquatic niche
The aquatic ape hypothesis (AAH), also referred to as aquatic ape theory (AAT) or the waterside hypothesis of human evolution, postulates that the ancestors
Aquatic_ape_hypothesis
Hypothesis that emotional processes guide or bias decision-making
The somatic marker hypothesis, formulated by Antonio Damasio and associated researchers, proposes that emotional processes guide (or bias) behavior, particularly
Somatic_marker_hypothesis
Hypothesis concerning lack of extraterrestrial contact with Earth
The zoo hypothesis speculates on the assumed behavior and existence of technologically advanced extraterrestrial life and the reasons they refrain from
Zoo_hypothesis
2008 Chinese science fiction novel
impending invasion fleet from an alien planet. It explores the dark forest hypothesis (so-named after the novel), a possible solution to the Fermi paradox,
The_Dark_Forest
Fringe hypothesis about a North American comet impact
The Younger Dryas impact hypothesis (YDIH) is a fringe hypothesis that posits that the cause of the sudden influx of freshwater into the ocean at the end
Younger Dryas impact hypothesis
Younger_Dryas_impact_hypothesis
Economic theory that asset prices fully reflect all available information
The efficient-market hypothesis (EMH) is a hypothesis in financial economics that states that asset prices reflect all available information. A direct
Efficient-market_hypothesis
1968 book by Erich von Däniken
translated from the original German by Michael Heron. It involves the hypothesis that the technologies and religions of many ancient civilizations were
Chariots_of_the_Gods?
Postulate in particle physics
The one-electron universe is the hypothesis that all electrons and positrons are actually manifestations of a single entity moving backwards and forwards
One-electron_universe
Hypothesis of barriers to forming interstellar civilizations
Great Filter hypothesis, at least one of these steps—if the list were complete—must be improbable. If it is not an early step (i.e., in the past), then the
Great_Filter
1973 book by Burton Malkiel
book on the subject of stock markets which popularized the random walk hypothesis. Published in 1973, Malkiel argues that asset prices typically exhibit
A Random Walk Down Wall Street
A_Random_Walk_Down_Wall_Street
Hypothesized effect of blood lead levels on criminal behavior
The lead–crime hypothesis proposes that the sharp decline in crime rates in the industrialised world in the 1990s and beyond, after decades of increased
Lead–crime_hypothesis
Hypothesis that younger people are better at language acquisition
The critical period hypothesis is a hypothesis within the field of linguistics and second language acquisition that claims a person can achieve native-like
Critical_period_hypothesis
Discrepancy of the lack of evidence for alien life despite its apparent likelihood
protect its independent cultural development, which resembles the zoo hypothesis proposed by John Ball. The Fermi question first appeared in print in a
Fermi_paradox
Archaeological theory
In archaeology, the Saxe–Goldstein hypothesis is a prediction about the relationship between a society's funerary practices and its social organization
Saxe–Goldstein_hypothesis
Hypothesis that some unidentified flying objects are created by extraterrestrial life
The extraterrestrial UFO hypothesis or extraterrestrial hypothesis (ETH), synonymous with interplanetary aircraft and alien UFO technologies, proposes
Extraterrestrial UFO hypothesis
Extraterrestrial_UFO_hypothesis
Hypothesis that planets with complex life are extremely rare
In planetary astronomy and astrobiology, the Rare Earth hypothesis argues that the origin of life and the evolution of biological complexity, such as sexually
Rare_Earth_hypothesis
Conflict between known physical principles (time symmetry and entropy)
particular perspective on entropy, reversibility and the Second Law Past hypothesis Poincaré recurrence theorem Reversibility Statistical mechanics Wu
Loschmidt's_paradox
Town in Bihar, India
historians regarding the origin of the name of the district Jamui. The first hypothesis said that the name of Jamui derived from "Jambhiya Gram" or "Jribhikgram"
Jamui
constructed to test this hypothesis, and showed that it was feasible. However, in order for deleterious mutations that affect fertility past roughly age fifty
Evolution_of_menopause
American philosopher of physics (born 1942)
ISBN 978-0-19-512737-9. OCLC 63294618. Earman, John (2006). "The "Past Hypothesis": Not even false". Studies in History and Philosophy of Science Part
John_Earman
2006 book by Jonathan Haidt
The Happiness Hypothesis: Finding Modern Truth in Ancient Wisdom is a 2006 book written by American social psychologist Jonathan Haidt. In it, Haidt poses
The_Happiness_Hypothesis
1969 techno-thriller novel by Michael Crichton
real people." He wrote the novel over three years. The "odd-man hypothesis" is a hypothesis that states that unmarried men are better able to execute the
The_Andromeda_Strain
Financial theory
The random walk hypothesis is a financial theory which states that the prices of financial assets, particularly those in the stock market, follow a random
Random_walk_hypothesis
Idea that everyone faces consequence as they deserve
The just-world fallacy, or just-world hypothesis, is the cognitive bias that assumes that "people get what they deserve" – that actions will necessarily
Just-world_fallacy
Hypothesis about ADHD
The hunter versus farmer hypothesis is a proposed explanation for the nature of attention-deficit hyperactivity disorder (ADHD). It was first suggested
Hunter versus farmer hypothesis
Hunter_versus_farmer_hypothesis
Use of the second law of thermodynamics to distinguish past from future
inflation Entropy H-theorem History of entropy Loschmidt's paradox Past hypothesis Boltzmann, Ludwig (1877). Über die Beziehung zwischen des zweiten Hauptsatze
Entropy_as_an_arrow_of_time
Psychological hypothesis about intergroup contact
In psychology and other social sciences, the contact hypothesis suggests that intergroup contact under appropriate conditions can effectively reduce prejudice
Contact_hypothesis
Extinction of large animals at the end of the last Ice Age
supporting the prehistoric overkill hypothesis includes the persistence of megafauna on some islands for millennia past the disappearance of their continental
Late_Pleistocene_extinctions
Claim of past rapid changes of the Earth's axis
The cataclysmic pole shift hypothesis is a pseudoscientific claim that there have been recent, geologically rapid shifts in the axis of rotation of Earth
Cataclysmic pole shift hypothesis
Cataclysmic_pole_shift_hypothesis
Theory of Indo-European origin
The Steppe theory, also known as archaeologist Marija Gimbutas's Kurgan hypothesis, Kurgan theory, and Kurgan model, is the most widely accepted proposal
Steppe_theory
Theoretical paradox resulting from time travel
paradoxes arise from circumstances involving hypothetical time travel to the past. They are often employed to demonstrate the impossibility of time travel
Temporal_paradox
Economic theory
relative income hypothesis was developed by James Duesenberry in 1949. It consists of two separate consumption hypotheses. The first hypothesis states that
Relative_income_hypothesis
Evolutionary hypothesis
The savannah hypothesis (or savanna hypothesis) is a hypothesis that human bipedalism evolved as a direct result of human ancestors' transition from an
Savannah_hypothesis
9/11 conspiracy theories
Eagar is one scientist who has paid some attention to the demolition hypothesis — albeit grudgingly. A materials engineer at the Massachusetts Institute
World Trade Center controlled demolition conspiracy theories
World_Trade_Center_controlled_demolition_conspiracy_theories
Fringe theory on the age of the Great Sphinx of Giza
The Sphinx water erosion hypothesis is a fringe claim, contending that the Great Sphinx of Giza and its enclosing walls show erosion consistent with precipitation
Sphinx water erosion hypothesis
Sphinx_water_erosion_hypothesis
Bias confirming existing attitudes
Peter Wason, as "a preference for information that is consistent with a hypothesis rather than information which opposes it." Confirmation biases are effects
Confirmation_bias
Psychological theory
been shaped by their past attuned knowledge and understanding of racist incidents in history. Researchers of the Marley Hypothesis propose that members
Marley_hypothesis
Study of natural sediments and their formation processes
Geohistorical Time Arrow: From Steno's Stratigraphic Principles to Boltzmann's Past Hypothesis" (PDF). Journal of Geoscience Education. 62 (4): 691–700. Bibcode:2014JGeEd
Sedimentology
Speakers of Austronesian languages
Hmong–Mien and even Japanese-Ryukyuan into the larger Austric hypothesis. While the Austric hypothesis remains contentious, there is genetic evidence that at
Austronesian_peoples
Hypothesis in psychology
Bicameral mentality is a psychological hypothesis proposed by American psychologist Julian Jaynes. It suggests that early modern humans experienced thoughts
Bicameral_mentality
Philosophical thought experiment
named after the physicist Ludwig Boltzmann (1844–1906), who published a hypothesis in 1896, prior to the Big Bang theory, that tried to account for the fact
Boltzmann_brain
Hypothesis concerning the internal classification of the Indo-Aryan language family
The Inner–Outer hypothesis of the subclassification of the Indo-Aryan language family argues for a division of the family into two groups, an Inner core
Inner–Outer_hypothesis
Manuscript
accepted and convincing translation or interpretation of the text. No hypothesis as to the language of the codex has been backed as a universal solution
Rohonc_Codex
Study of the past
theory, or confirm a new hypothesis. To answer research questions, historians rely on various types of evidence to reconstruct the past and support their conclusions
History
Theory of early hominid migration
likely developed in Africa between 300,000 and 200,000 years ago, with one hypothesis arguing that diverse morphological features of H. sapiens appeared locally
Recent African origin of modern humans
Recent_African_origin_of_modern_humans
Hypothetical stage in the early evolutionary history of life on Earth
before the evolution of DNA and proteins. The term also refers to the hypothesis that posits the existence of this stage. Alexander Rich first proposed
RNA_world
Evolutionary biology hypothesis
The thrifty gene hypothesis is an attempt by geneticist James V. Neel to explain why certain populations and subpopulations in the modern day are prone
Thrifty_gene_hypothesis
Mythical bird in Japanese folkore
furi as a type of large bird, an eagle according to some. (Cf. § Vulture hypothesis), and since in the Ainu language hure denotes 'red' color, the name must
Huri_(Ainu_legendary_bird)
British chemist and physicist (1766–1844)
his death, to test this hypothesis. His wishes were duly carried out, but no blue colouration was found, and Dalton's hypothesis was refuted. The shrivelled
John_Dalton
1937 airship fire in the US
consistent with the "explosive" dope hypothesis. The TV show MythBusters explored the incendiary paint hypothesis. Their findings indicated that the aluminum
Hindenburg_disaster
Hypothetical star orbiting the Sun, supposedly responsible for extinction events
galactic gravity plane working against the outer solar orbital plane (Shiva hypothesis), may be the cause of orbital perturbations of some outer Solar System
Nemesis_(hypothetical_star)
American merchant vessel
2021 – via Papers Past. "MYSTERY OF THE JOYITA". The Press. 25 October 1955. p. 10. Retrieved 26 September 2021 – via Papers Past. "Author says he's
MV_Joyita
Hypothetical scenario for the origin of life
The iron–sulfur world hypothesis is a set of proposals for the origin of life and the early evolution of life advanced in a series of articles between
Iron–sulfur_world_hypothesis
grass hypothesis is an evolutionary hypothesis that explains the evolution of high-crowned teeth, particularly in New World mammals. The hypothesis is that
Grit,_not_grass_hypothesis
Theory of Genesis authorship
The Wiseman hypothesis, sometimes called the tablet theory, is a theory of the authorship and composition of the Book of Genesis which suggests that Moses
Wiseman_hypothesis
The "drifty gene hypothesis" was proposed by the British biologist John Speakman as an alternative to the thrifty gene hypothesis originally proposed by
Drifty_gene_hypothesis
Security analysis methodology
techniques. The efficient-market hypothesis (EMH) contradicts the basic tenets of technical analysis by stating that past prices cannot be used to profitably
Technical_analysis
Largely abandoned theory about Jewish descent
A largely abandoned historical hypothesis postulated that Ashkenazi Jews were primarily, or to a large extent, descended from converts to Judaism among
Khazar hypothesis of Ashkenazi ancestry
Khazar_hypothesis_of_Ashkenazi_ancestry
Philosophical problem-solving principle
and both hypotheses have equal explanatory power, one should prefer the hypothesis that requires the fewest assumptions, and that this is not meant to be
Occam's_razor
Geomorphological feature of Mars
for this hypothesis. A 2008 study provided additional research towards the single giant impact theory in the northern hemisphere. In the past, tracing
Martian_dichotomy
Hypothesis about the evolution of human language
The cognitive tradeoff hypothesis argues that in the cognitive evolution of humans, there was an evolutionary tradeoff between short-term working memory
Cognitive_tradeoff_hypothesis
Underwater feature in the Indian Ocean
2020-10-27 at the Wayback Machine Anonymous (2009) "Past Tsunamis? Contrary To Recent Hypothesis, 'Chevrons' Are Not Evidence Of Megatsunamis." ScienceDaily
Burckle_Crater
Language branch
legitimate scholarly arguments for both the Insular Celtic hypothesis and the P-/Q-Celtic hypothesis. Proponents of each schema dispute the accuracy and usefulness
Celtic_languages
Intense physical sensation of sexual release
leaking out. This possibility, sometimes called the "Poleaxe Hypothesis" or the "Knockout Hypothesis", is now considered unlikely. A 1994 Learning Channel documentary
Orgasm
Type of stress faced by minority groups
causal explanation for minority health disparities is the social selection hypothesis, which holds that there is something inherent to being in a minority group
Minority_stress
Theories on 1937 disappearance of American aviators
have been considered. Gardner Island Howland Island The Gardner Island hypothesis assumes that Earhart and Noonan, unable to find Howland Island, would
Speculation on the disappearance of Amelia Earhart and Fred Noonan
Speculation_on_the_disappearance_of_Amelia_Earhart_and_Fred_Noonan
Hypothesis that firms adjust financing decisions to exploit favourable market conditions
The market timing hypothesis, in corporate finance, is a theory of how firms and corporations decide whether to finance their investment with equity or
Market_timing_hypothesis
Hypothesis of climate impact by early humans
The Early Anthropocene Hypothesis (sometimes referred to as 'Early Anthropogenic' or 'Ruddiman Hypothesis') is a stance concerning the beginning of the
Early_anthropocene
Hypothesis about human childbirth
The obstetrical dilemma is a hypothesis to explain why humans often require assistance from other humans during childbirth to avoid complications, whereas
Obstetrical_dilemma
Almighty Goddess concept
across most of Eurasia, at least. Scholarly support for the hypothesis waned in recent past decades. The Great Goddess of ancient Teotihuacan was not just
Great_Goddess
Hypothesis in Indo-European historical linguistics
The Armenian hypothesis, also known as the Near Eastern model, is a theory of the Proto-Indo-European homeland, initially proposed by linguists Tamaz V
Armenian_hypothesis
Power law growth of entropy of language or a stochastic process
Hilberg's hypothesis (also known as Hilberg's law) is a conjecture in quantitative linguistics or a statistical law in information theory. It states that
Hilberg's_hypothesis
Fictional TV character
characters appeared on more shows, and so on, a "Tommy Westphall Universe" hypothesis (postulated by Dwayne McDuffie) argues that a significant amount of fictional
Tommy_Westphall
Japonic language
Some scholars claim that Manyogana originated from Baekje, but this hypothesis is denied by mainstream Japanese scholars. Hiragana and katakana were
Japanese_language
1903 book by Bal Gangadhar Tilak
concerning the North European hypothesis. Anatolian hypothesis Ancient North Eurasians Arctic Ariana Armenian hypothesis Aryan Aryan race Aryavarta Atlantis
The_Arctic_Home_in_the_Vedas
Charrúa Indian who survived the massacre of Salsipuedes, only to die in France
10, 2010, Anna Donner Rybak, an Uruguayan author, published a personal hypothesis. First came the deaths of Vaimaca and Senacua: "They did not adapt to
María_Micaela_Guyunusa
Concept in economics
nature of supplier induced demand in the health sector. The target income hypothesis suggests that a physician is motivated to maintain a certain level of
Supplier-induced_demand
Fringe proposed language family
influences, arguing that the word structure of the Sinitic languages in the past was closer to the Uralic languages. Similarly, Karl August Hermann argued
Sino-Uralic_hypothesis
Obsolete medical theory
According to the cardiocentric hypothesis, the heart is the primary location of human emotions, cognition, and awareness. This notion may be traced back
Cardiocentric_hypothesis
Hypothetical Solar System planet
must have been thrown past the Oort cloud if one has entered a stable orbit. Further skepticism about the Planet Nine hypothesis arose in 2020, based on
Planet_Nine
Namesake of the Abrahamic religions
millennium BCE. However, in the 1970s, new arguments concerning Israel's past and the biblical texts challenged these views; these arguments can be found
Abraham
travel, tourism, insurance
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