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<span style="font-size:125%">'''Discussion:'''</span>
<span style="font-size:125%">'''Discussion:'''</span>


Geoffrey Miller's [[Fisherian runaway#Behavior|''mating mind'' hypothesis]] of human intelligence states that higher cognition and much of human behavior may have evolved as "cognitive ornament" though [[Fisherian runaway|positive-feedback processes]] in sexual selection. Such runaway selection predicts not only exaggerated ornament, but also highly narrowed and exaggerated preference for such ornament. This may suggest the struggles high-functioning autists face may in part be rooted in social exclusion based on sexually selected preferences for highly specific modes of facial and emotional expressiveness in similar manner as humans and other animals superficially but strongly judge based on subtle cues of physical appearance despite them being largely unrelated to health and ability, i.e. this may be evidence of a ''few millimeters of emotional expressiveness'' and [[charisma]] in analogy to [[a few millimeters of bone]] that contribute to social and sexual exclusion.
This finding also brings into question the often touted claim that autists fail socially primarily because they can't read social cues and accidentally offend people, especially since autists do not score lower in some components of empathy, in some even higher than [[neurotypical]]s (Song 2019).


This finding also brings into question the often touted claim that autists fail socially primarily because they can't read social cues and accidentally offend people, especially since autists do not score lower in some components of empathy, in some even higher than [[neurotypical]]s (Song 2019).
Emotional expressiveness may have evolved due to the necessity for social organization in groups of humans. Impaired expressiveness implies difficulties ascending and navigating social hierarchies, hence there is selection pressure for sexual preferences to avoid non-[[neurotypical]] individuals. Such non-neurotypicals may also tend to be ineffective coalition partners. Further, atypical behavior may have been indicative of a neurodegenerative infectious disease in the past often enough that humans evolved a natural aversion.


The natural aversion to subtle differences in emotional expressiveness that may play a role in the social difficulties that autists face, may also be a driver of racism as each race may be finely attuned to particular cognitive ornament specific to their race. For example, Albert Einstein perceived the Northeast Asians as [https://www.theguardian.com/books/2018/jun/12/einsteins-travel-diaries-reveal-shocking-xenophobia obtuse].
An alternative or additional explanation may be sexual selection: Geoffrey Miller's [[Fisherian runaway#Behavior|''mating mind'' hypothesis]] of human intelligence suggests that higher cognition and much of human behavior may have evolved as "cognitive ornament" though [[Fisherian runaway|positive-feedback processes]] in sexual selection. Such runaway selection predicts not only exaggerated ornament, but also highly narrowed and exaggerated preference for such ornament. This may suggest the struggles high-functioning autists face may in part be rooted in social exclusion based on sexually selected preferences for highly specific modes of facial and emotional expressiveness in similar manner as humans and other animals superficially but strongly judge based on subtle cues of physical appearance despite them being largely unrelated to health and ability, i.e. this may be evidence of a ''few millimeters of emotional expressiveness'' and [[charisma]] in analogy to [[a few millimeters of bone]] that contribute to social and sexual exclusion.
The natural aversion to subtle differences in emotional expressiveness, may also be a driver of racism as each race may be finely attuned to particular cognitive ornament specific to their race. For example, Albert Einstein perceived the Northeast Asians as [https://www.theguardian.com/books/2018/jun/12/einsteins-travel-diaries-reveal-shocking-xenophobia obtuse] in one of his travel diaries.


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