Talk:Evolution of human intelligence

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This article is crap.[edit]

The silly assumption that intelligence lacks practical survival value seems to run as a standing theme throughout almost the whole article. It gives undue weight to social intelligence hypothesis (a hypothesis that is refuted by statistical brains making brain capacity to be about precision as opposed to bits meaning that the link between brainpower and cognition is asymptotic not linear, by the fact that individuals with more complex personalities are more difficult to learn to know meaning that maximal number of relationships cannot raise with intelligence, and the by David Attenborough documented fact that stupid herd animals that believers in social intelligence hypothesis explain away as "just congregating without social structure" actually do have social hierarchies), totally fails to mention that if intelligence was such a good fitness indicator for sexual selection the sexual selection hypothesis predict it would have evolved many times meaning that hypothesis cannot explain the apparent uniqueness of human intelligence, makes no reference to the crucial distinction between neurological-conceptual discrimination on one side and mental age on the other, no references to the ability to ask questions and investigate physical reasons, no references to redundancy in brainpower, and it treats nutritional value as a model of why intelligence evolved when in fact it is only a model of how it became possible. Furthermore, some hypotheses recur under other names, e.g. "ecological dominance/social competition" is a version of social intelligence hypothesis and "intelligence as a resistance signal" is a version of sexual selection hypothesis. It does not discuss what the controversy between recent african origin model and multiregional model means to the evolution of intelligence and transmission of knowledge. It makes no references to the possibility that some skills may be due to a removal of psychological aversions rather than improved capacity or that some aspects of behavioral modernity may be the result of emergent interaction between biological adaptation to one environment and actual upbringing in a very different environment, i.e. maladaptation. The distinction between a timescale section and a models section is absurd, it fails to cover the differences in what parts of the timescale can be explained by what models. The only good thing is that it mentions the "flexible problem solving" model at all. The whole article should be cleaned up and rewritten.79.138.150.87 (talk) 18:42, 25 November 2011 (UTC)Martin J Sallberg

Homininae section is bumpy and goofy[edit]

please rewrite.--Kid 007 (talk) 14:40, 24 December 2011 (UTC)

Completely agreed. Really the entire "History" section could use a revisiting. The following "Homo" section is equally awkward in its wording and "Homo Sapiens" is just a picture... A lot of it feels speculative and there are no citations for many of the claims.Milotoor (talk) 07:56, 9 September 2013 (UTC)

Wrong to remove "fallabilism and epigenetics" model.[edit]

"Fallabilism" means admitting mistakes and not believing in any infallability. The data on learning proving the importance of willingness to committ and admit mistakes to learn from is relevant to understand where the ability to learn came/comes from. Models of evolution based on sexual selection or social intelligence both predicts a strong unwillingness to committ and admit mistakes to learn from, making them directly counterproductive in explaining human intelligence. And the question of "why does epigenetics not have the same effect in other species" is misframed in the context. You could as well be asking why natural selection did not have the same effect in all life. Epigenetics is also context-dependent. Most animals are under too much time-stressing threat to take time to think while others, such as apes, are too entangled in social intrigue to afford committing and admitting mistakes to learn from. Human evolution can then be explained as the creation of social environments friendly to mistakes. See the article "Brain" on topic page "Psychology" on http://purescience.wikia.com The section should be reinserted into the article, possibly under a less cryptic heading. 109.58.218.46 (talk) 06:45, 7 February 2013 (UTC)Martin J Sallberg

The proposed section is original research. There are citations, but they do not back up the claims made. Where in the sexual / social selection literature is an unwillingness to admit mistakes predicted? Or a statement that "mistakes are too expensive to afford". These require careful citation. And if this is about "the creation of a social environment" friendly to mistakes, why is it not a special case of social selection?
I've put the deleted text below to facilitate discussion.Joannamasel (talk) 14:20, 7 February 2013 (UTC)
===Fallabilism and epigenetics===
The Darwinian uselessness of the high levels of human intelligence can be explained if the difference in intelligence between apes and humans is actually epigenetic rather than genetic.[1] This theory is supported by research showing the importance for learning of willingness to committ and admit mistakes to learn from,[2] neither of which can be selected by sexual selection or social brain selection since both sexual selection and social intelligence are about conditions where mistakes are too expensive to afford.

It is not social SELECTION because such a removal of intolerant intrigue requires simultaneous change in multiple individuals, as opposed to selection on random mutations that begins in only one individual. The scenario is something like a more thorough version of how the Forest Troop baboons became peaceful. 109.58.197.172 (talk) 15:27, 7 February 2013 (UTC)Martin J Sallberg

By the way... you don't happen to mean fallibilism? And apart from your discussion, I insist that these sentences are too technical for an ordinary reader to understand. Lova Falk talk 19:10, 7 February 2013 (UTC)

Neanderthals are not ancestors but companions[edit]

Though it IS true that many neanderthals mated with Cro-magnons leading to many in the modern day human population to in part have also descended from neanderthals. Neanderthals and Cro-magnons are different species which evolved around the same time from the same ancestor. So we didn't EVOLVE out off neanderthals.

Further I read somewhere that neanderthals had larger brain size but less off it was used for thinking(most for controlling their in-efficient bodies)as a result we are smarter, similar to how dolphins(while having a larger brain size) use around 80% of it for sonar and sound.

Neanderthal extinction could have been avoided by either a 25 rise or decrease in the Birth & death rates respectively. — Preceding unsigned comment added by 182.68.97.73 (talk) 16:27, 5 July 2013‎ (UTC)

Hi 182.68.97.73, and thank you for your comment! How exactly would you like to change the article? Lova Falk talk 08:20, 4 August 2013 (UTC)
Hi, Lova, I'm glad you are watching this article. I should remind our fellow editors about the Anthropology and Human Biology Citations source list I have posted for the use of all Wikipedians who have occasion to edit articles on human genetics and related issues. I happen to have circulating access to a huge academic research library system at a university with an active research program in these issues (and to other academic libraries in the same large metropolitan area) and have been researching these issues from time to time since 1989. I have just become a Wikipedia Visiting Scholar at another large research university, so I expect to be building up reference lists to share with you and other Wikipedians with the resources of that university library system for most of the rest of 2014. All Wikipedians are welcome to use these citations for your own research. You can help other Wikipedians by suggesting new sources through comments on that page. It will be extremely helpful for articles on human genetics to edit them according to the Wikipedia standards for reliable sources for medicine-related articles, as it is important to get these issues as well verified as possible. -- WeijiBaikeBianji (talk, how I edit) 13:01, 7 June 2014 (UTC)
    • ^ Eva Jablonka et al.: Four-dimensional evolution
    • ^ Kurt Fischer, Christina Hinton et al.: Mind, Brain and Education