Fisherian runaway

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A popular sex icon: Zyzz, died young of sudden cardiac arrest from too much steroid use to make himself look hyper-masculine. He was not a reproductive success. The round shapes of pecs, bursa etc., repeating creases in the abs and smooth skin may as well be mere ornament.

Fisherian runaway is a model of how sexual selection can lead to exaggerated physical or behavioral traits (ornament) and exaggerated preferences for these traits.[1][2] These exaggerated traits can potentially reduce population viability[3] and contribute to extinction.[4][5][6] The name derives from the originator of the concept, Ronald Fisher, the 20th century British statistician, geneticist, eugenicist and racialist.

Fisherian runaway is a popular meme in the manosphere used to argue women's mate choices may be maladaptive, resulting in excessive emphasis on superficial courtship and selecting exaggerated anti-social traits that incite male competition. Fisherian runaway is often misunderstood to refer to exaggeration as a lifestyle choice, but it actually refers to an evolutionary process over many generations. However, sexual preferences evolved this way can motivate extreme body modifications like breast/penis enlargement, hormone supplements, bodybuilding and plastic surgery.

Explanation[edit | edit source]

"The females may be dull looking, but they're very picky." A peacock courting a peahen

Positive feedback[edit | edit source]

Fisherian runaway is a selection process occurring over many generations, in which the one sex (either male or female) becomes more choosy about a heritable trait for the sole reason that it will make the offspring more attractive. As the choosiness for the trait increases, the selective pressure to prefer the trait increases too, forming a positive feedback loop. In response to the increased choosiness, the other sex evolves to enlarge, overcomplicate or beautify that trait in efforts of becoming more attractive, eliciting super-stimuli in the opposite sex. The exponential nature of positive feedback loops exerts a strong selection pressure that the resulting exaggerated ornament may reduce mobility and increase vulnerability to predators and to sudden environmental changes. The result is strong selection for a trait and sexual attraction to it only because it is attractive to others (l'art pour l'art), not because of any other survival value, i.e. the trait bears no advantage regarding strength, health, ability, morality or overall "good genes".

Since females are more choosy in many species throughout the animal kingdom (including humans), the males tend to be more ornamented.

Initiation[edit | edit source]

Positive feedback loops in sexual selection can be arbitrarily initiated when a trait is slightly correlated with fitness, for example when it is associated with viability, objective aesthetics (aesthetic sexual selection), or when a trait is similar in appearance to already attractive or otherwise valued objects or body parts.[7] For example, women's breasts may have been selected by men to mimic their buttocks because the latter was already a sexually attractive body part before humans developed upright posture, and then Fisherian runaway may have lead to breasts becoming increasingly larger and increasingly attractive to men.[7]

Over the course of the positive-feedback process, the initial correlation with fitness of the trait in question may lose its importance.[8]

Beauty[edit | edit source]

Feedback loops in sexual selection like Fisherian runaway may have played a role in the evolution of beauty. Beauty could have evolved simply by aesthetic sexual selection, i.e. mate selection favoring objective beauty (simplicity). But feedback loops as mentioned above may have exaggerated aspects of it, leading to increased sexual dimorphism and amplified and narrowed the attraction to specific kinds of beautiful physical traits. This also stabilizes the phenotype, making it harder to adapt to environmental changes. Any sort of sexual dimorphism, whether behavioral or physical likely tends to get reinforced by such feedback loops because sexual dimorphism is inherently attractive.[9] The narrowing in preferences may explain the few millimeters of bone effect. It may also explain the disproportional importance people place on good looks and why people undergo great risks and costs merely for improving their looks, e.g. by surgeries, diets or steroid intake (see Zyzz's photo). It could also explain the phenomenon of being stunned by someone's appearance, double takes, as well as "love at first sight" and oneitis, in fact "love at first sight" is nearly entirely explained by looks.[10] Women call poorly ornamented men creeps.

Behavior[edit | edit source]

Geoffrey Miller suggested strong positive-feedback processes in sexual selection to have given rise to higher human cognition and behavior, which he regards as too advanced and exaggerated for the necessities of human survival.[11] Indeed, intelligence itself is sexually attractive with the most attractive IQ score being 120, far above average intelligence.[12] Much of male courtship consists in eliciting super stimuli in women's brains by cognitive performances such as poetry, dancing, art and humor.[11] See also beautiful behavior.

Examples[edit | edit source]

Animals[edit | edit source]

There are many animals with exaggerated ornament, e.g. peacock tail[13] and narwhal tusks.[14] Some animal species have been theorized to have gone extinct in part due to runaway selection. A prominent example is the Irish elk. Female Irish elk may have selected male elk with increasingly larger antlers. Some recovered antlers measure 9 ft (2.7 m) across and weigh over 90 pounds (40 kg). The extreme nutritious cost to grow such huge antlers, coupled with the burden of such a heavy load, were possibly more than the males could handle, particularly as their food source density decreased during environmental changes.[15] Natural selection would have favored males with smaller bodies and antlers for their lower nutritional needs and superior mobility, however the sexual selection pressures were strong and the ornament has become so fixed in a positive feedback loop, that it may have ultimately caused extinction.[6]

Research into sexual selection and how it influences extinction is scarce, partly because fossils don't reveal much about gender, more or less animal behaviour. But a few attempts have been done to study it systematically. Reseracher Fernandes Martins did this for 93 ostracod species. She found that those species where males were biggest relative to females went extinct 10x faster than species with smaller males relative to females.[16]

Humans[edit | edit source]

Even though human females are more choosy in accordance to Bateman's principle, both sexes are ornamented. Women have permanently swollen breasts,[17] an hour glass shaped body, long hair etc., men have a V-shaped upper body, more toned muscles, beards, very large penises compared to other great apes, and various other features.[18] Both sexes have clearly defined hairlines and very clear skin. None of these features have survival value besides being good looking, so they're likely sexually selected, likely mostly by aesthetic selection common to many higher animals,[19] and possibly by feedback loops like Fisherian runaway and sensory bias,[20] leading to exaggeration and strengthened sexual dimorphism.[21] Though dominant and masculine features like hunter eyes, large beards and a deep voice may also serve the intimidation of other males,[22][23] but these adaptations in turn could be exaggerated again by runaway selection. The fact that men have only reproduced half as often as women throughout human's evolution[24] suggests the most dominant men were primarily involved in selecting women's ornament.

Female mate choice[edit | edit source]

Sexy son hypothesis[edit | edit source]

The sexy son hypothesis was proposed by Weatherhead & Robertson in 1979 and considers the consequence of runaway selection for female mate choice.[25] It simply states that the positive feedback loop can make women so attracted to a man's ornament that women will readily choose a "sexy man" regardless of other considerations such as his morality or paternal investment, because the man's ornament—which is partly heritable—will confer the same reproductive advantage on their male offspring. The male offspring will hence also be "sexy" to other women, making up for any other flaws on part of their father.[26] This is particularly staggering in women, otherwise coy, engaging in casual sex with men way above their league (i.e. getting pumped and dumped), then resulting in single mothers and the betabuxx phenomenon.

Since women heavily depended on men's provision throughout human history,[27] only a tiny percentage of men are good looking enough to make up for other potential flaws and hence can skip women's typical coy waiting time.[28] Women would also much more readily forego using a condom with a good looking mate.[29] Of course, men also more readily copulate with sexy women, even more than women, but men have less parental investment and hence do not need to care as much about such considerations. This is evidenced by men's much higher inclination to copulate with a random stranger, i.e. lower standards for casual sex.[28] Men are also more choosy when they actually have to provide.

Hence, for women, copulating only based on sexiness has more drastic implications, explaining why people care less about the "sexy daughters" phenomenon. However, arguably, a similarly risky strategy for men is raping a sexy woman (to produce sexy daughters as a promising vehicle of their own genes). Both are irresponsible and socially parasitic as they depend on others investing in the offspring (in modern societies via taxes). Engaging in alpha fuxx, beta buxx, the woman risks not being provided for. Engaging in rape, the man risks death and exile and also won't provide for the offspring. But provided some do engage in these strategies, may mean such sexual strategies have evolved because better looking offspring can make up for these risks on average (in terms of evolutionary fitness).

It is disputed to which extent male choice can actually result in a positive-feedback process for selecting female ornament (sexy daughters),[citation needed] but men's ridiculously strong attraction to large female breasts strongly points to runaway selection regarding sexy daughters.

Maladaptiveness[edit | edit source]

Various members of the manosphere claimed that the increasingly dimorphic beauty standards that men are expected to adhere to in a harsher modern dating environment may be the beginning of a Fisherian runaway or intensification of existing ones. Women are thought to increasingly choose men with the most sexually dimorphic traits such as cartoonishly large muscles and frame, with no selective attention paid to traits like loyalty or morality. As such, women's mate choice may be maladaptive and reduce population viability.

This results in an even higher competitive environment among men without physically sexually dimorphic traits. Due to behavioral traits also being sexually selected, it has been claimed, men will also become more psychopathic and disagreeable to win female attention, exaggerating character traits which many see as incompatible with modern civilization. There is indeed some evidence that dark triad traits are currently being sexually selected by (at least Western) women,[30][31] and that criminal and anti-social men often have more sexual partners and reproductive success.[32][33][34] Some view this data as evidence of the beginning of a process of fisherian runaway selection. Research on sexual selection theory by Puts (2010) suggested women's preference for highly dominant men may have partly been a result of sexual selection.[35][36]

The originator of the concept of Fisherian runaway, Ronald Fisher, had a teleological view of evolution where he saw natural and sexual selection as being united in driving evolutionary 'progress' towards a higher form of life. He invoked fears of runaway selection leading to the decline of societies, warning that selection for what he saw as more frivolous qualities such as wealth alone would result in negative social outcomes.[37]

Men's rights activist Warren Farrell in his book, The Myth of Male Power, warned women that their preference for and encouragement of, "hunter-killer", "star quarterback", type men could cause the extinction of the human race with the arrival of nuclear technology. He also claimed that since civilization and the industrial revolution dark triad traits have become maladaptive, as the traits which foster a healthy society have switched from might-makes-right individual brutality, to cooperation, intelligence, empathy etc.

Even though anti-social men do outreproduce nice guys,[38] today's society differs from Farrell's predictions in that there is actually a trend for men to become more androgynous/feminine, e.g. testosterone levels, sperm count[39] and mandible sizes have reduced considerably,[40] possibly caused by mutation, pollution, obesity and/or a masculinity crisis. Demotivated from competing in production of social value, today's men increasingly engage in LDARing, NEETing, or spending all their time looksmaxxing, with women seemingly increasingly becoming choosy about looks enabled by their financial independence, as sexologist Kristin Spitznogle pointed out. Hence, society is becoming an exact mirror image of the Wodaabe African tribe, the most matriarchal society on the planet, but also slight selection toward more ruthless and anti-social males at the same time.

Discussion[edit | edit source]

Good genes[edit | edit source]

Main article: Good genes hypothesis

Good genes hypothesis or Zahavi's handicap principle claims exaggerated ornament is a costly and hence a reliable signal of other desirable traits. For example, a peacock with a very large tail would be easy prey (which is costly), and thus would most likely have other good traits that make up for this handicap (good genes). There is, however, little supporting scientific evidence. In humans in particular, beauty and ornament is not strongly correlated with health at all (only weakly), and even less with cognitive ability, though people strongly perceive them to be (halo effect).[41]

A computer model created by Chandler et al., found evidence that traits initially spread by runaway selection can also become indicator traits of "good genes". They also found that these ornamental traits could serve as indicators of "good genes" even when they didn't function as costly signals, contradicting Zahavi's handicap principle, so good genes and runaway selection may not be mutually exclusive.[42]

Political dimension[edit | edit source]

Topics related to sexual selection are subject to political controversy and academic bias, presumably due to female scientists being involved who do not want to portrait female choice or behavior as maladaptive. The notion of "sexy sons" has an (arguably justified) slut-shaming undertone, which would seem politically incorrect and prone to self-censorship. Throw in the women-are-wonderful effect and you get "good genes" also implies that women select the "best" men, so their sexual freedom is justified and good. Some feminists unsurprisingly hold such good genes views, some of which have worked as criminal investigator and "justice fighters" for the FBI.[43]

Further, considering women's secondary sexual characteristics as means to conspicuously advertise themselves implies that they signal nubility, which however occurs long before reaching legal age. Teenager pregnancies are thought to incur a significant cost in modern society, hence any theories to this extent are prone to be shunned politically.[44] Arguably, anti-natalism, female herd mentality and hysteria have contributed to creating a moral panic about these matters.[45]

This may explain why there as been substantial academic rivalry between the Good Geners and Fisherian's camps,[46] which seems to be sexual conflict expressing as intellectual conflict.

Extinction[edit | edit source]

There is disagreement whether sexual selection alone can cause extinction. It likely increases the chances of extinction when combined with environmental factors like sudden ecological changes.[47][48][49] Base sexual preference is thought to be able to potentially increase, but also decrease population viability, i.e. make the species more likely to go extinct.[50][51][52] However, there has been little support of highly sexually dimorphic mammals being more endangered.[53] There are scientific models that show under a stable environment, a feedback loop can develop where male intrasexual competition leads to a linear increase in size dimorphism, outstripping the ability of the environment to support this increased size.[54] Theoretic models suggest extinction can only occur in combination with sudden environmental changes rather than by runaway selection alone, as long the ornamented individual bears the cost that is.[55]

See Also[edit | edit source]

References[edit | edit source]

  1. Fisher RA. 1915. The evolution of sexual preference. Eugenics Review. 7:184–192. [Google Scholar]
  2. Huk T, Winkel WG. 2008. Testing the sexy son hypothesis—a research framework for empirical approaches. Behavioral Ecology. 19:456–461.[Google Scholar]
  3. Encyclopedia of Ecology, By Brian D. Fath, page 316 [Google Books]
  4. https://www.theatlantic.com/science/archive/2018/04/males-penises-ostracods-extinction-sexual-selection/557756/
  5. The evolution of sexual strategy in modern humans: an interdisciplinary approach by Collins, Kendra Marie, https://studyres.com/doc/2550939/--california-state-university
  6. 6.0 6.1 Moen et al., 1999 http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.525.2990&rep=rep1&type=pdf
  7. 7.0 7.1 Fuller, R. C., Houle, D., & Travis, J. 2005. Sensory Bias as an Explanation for the Evolution of Mate Preferences. [Abstract], p. 444
  8. https://academic.oup.com/beheco/article/19/2/456/214088
  9. https://incels.wiki/w/Scientific_Blackpill#Even_chickens_prefer_sexually_dimorphic_human_faces.2C_to_the_same_extent_as_humans
  10. https://incels.wiki/w/Scientific_Blackpill#Love_at_first_sight_can_be_predicted_by_physical_attractiveness
  11. 11.0 11.1 https://ontherapyaspse.files.wordpress.com/2012/04/geoffrey-miller-the-mating-mind.pdf
  12. https://www.researchgate.net/publication/321640585
  13. https://link.springer.com/chapter/10.1007/978-3-319-46233-2_17
  14. https://royalsocietypublishing.org/doi/10.1098/rsbl.2019.0950
  15. The evolution of sexual strategy in modern humans: an interdisciplinary approach by Collins, Kendra Marie, https://studyres.com/doc/2550939/--california-state-university
  16. https://www.theatlantic.com/science/archive/2018/04/males-penises-ostracods-extinction-sexual-selection/557756/
  17. https://doi.org/10.1016/j.evolhumbehav.2010.02.005
  18. https://www.sciencedirect.com/science/article/abs/pii/S1090513810000279
  19. https://www.apa.org/monitor/oct06/pretty
  20. Fuller, R. C., Houle, D., & Travis, J. 2005. Sensory Bias as an Explanation for the Evolution of Mate Preferences. [Abstract]
  21. https://www.sciencedirect.com/science/article/abs/pii/S1090513810000279
  22. https://www.sciencedirect.com/science/article/abs/pii/S1090513810000279
  23. http://larspenke.eu/pdfs/Kordsmeyer_et_al_2018_-_Intra-_vs_intersexual_selection_on_human_males.pdf
  24. https://incels.wiki/w/Scientific_Blackpill#Before_.27enforced_monogamy.27.2C_women.27s_effective_population_size_was_up_to_17x_larger_than_men.27s
  25. Weatherhead PJ, Robertson RJ. 1979. Offspring quality and the polygyny threshold: 'the sexy son hypothesis' The American Naturalist. Volume 113. Issue = 2. Pages 201–208 [Abstract]
  26. https://academic.oup.com/beheco/article/19/2/456/214088
  27. https://incels.wiki/w/Scientific_Blackpill_(Supplemental)#Women_were_historically_predominantly_involved_in_cooking_and_they_never_dominated_men
  28. 28.0 28.1 https://incels.wiki/w/Scientific_Blackpill#Men_like_61.9.25_of_female_profiles.2C_women_like_only_4.5.25_of_male_profiles
  29. https://incels.wiki/w/Scientific_Blackpill#Women_are_less_likely_to_use_a_condom_with_a_more_attractive_male_partner
  30. https://www.researchgate.net/publication/273809664_The_Dark_Triad_personality_Attractiveness_to_women
  31. https://link.springer.com/article/10.1007/s40806-019-00213-0
  32. https://web.archive.org/web/20120513221622/http://abacon.com/ellis/tables/ch8.pdf
  33. https://www.ncbi.nlm.nih.gov/pubmed/12625439
  34. https://www.sciencedirect.com/science/article/abs/pii/S1090513814000774
  35. https://www.tandfonline.com/doi/abs/10.1080/07418825.2016.1216153?journalCode=rjqy20
  36. https://doi.org/10.1016/j.evolhumbehav.2010.02.005
  37. https://www.jstor.org/stable/4027434
  38. https://incels.wiki/w/Scientific_Blackpill#tocPersonality
  39. https://academic.oup.com/jcem/article/92/1/44/2597938
  40. https://incels.wiki/w/Scientific_Blackpill#Men_with_dominant.2C_aggressive_faces_.28high_fWHR.29_are_preferred_for_short_term_relationships
  41. https://incels.wiki/w/Scientific_Blackpill#Attractive_people_are_perceived_much_more_positively_than_they_really_are
  42. https://app.dimensions.ai/details/publication/pub.1009220931
  43. http://archive.is/wip/ZiejW
  44. https://www.researchgate.net/profile/Steven_Gaulin/publication/332968715_Evidence_supporting_nubility_and_reproducitve_value_as_the_key_to_human_female_physical_attractiveness/links/5cd870fb458515712ea67628/Evidence-supporting-nubility-and-reproducitve-value-as-the-key-to-human-female-physical-attractiveness.pdf
  45. https://incels.wiki/w/Scientific_Blackpill_(Supplemental)#90.25_of_victims_of_workplace_mass_hysteria_are_women
  46. https://www.amazon.com/Red-Queen-Evolution-Human-Nature-ebook/dp/B006O4227U
  47. https://biology.stackexchange.com/questions/239/is-there-any-evidence-that-sexual-selection-may-lead-to-extinction-of-species
  48. The evolution of sexual strategy in modern humans: an interdisciplinary approach by Collins, Kendra Marie, https://studyres.com/doc/2550939/--california-state-university
  49. Moen et al., 1999
  50. https://besjournals.onlinelibrary.wiley.com/doi/full/10.1111/1365-2656.12601
  51. https://www.sciencedaily.com/releases/2018/04/180411131646.htm
  52. https://www.nature.com/articles/d41586-018-04059-7
  53. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1691875/
  54. http://www.jstor.org/stable/2410506
  55. "Sexy to die for? Sexual selection and risk of extinction" by Hanna Kokko and Robert Brooks, Ann. Zool. Fennici 40: 207-219. [Abstract]

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