⏱ 7 minute read
Consider the trajectory of civilizations, much like the persistence of objects through time. A society, at its peak, extends its influence across eras, but disruptions can fragment that continuity. The Islamic world once exemplified such extension, during what historians call the Golden Age, roughly from the eighth to the thirteenth century. In that period, Muslim scholars in Baghdad and Cordoba advanced mathematics, with algebra refined by al-Khwarizmi, medicine through Ibn Sina’s comprehensive texts, and astronomy via precise observations that influenced Copernicus. Philosophy flourished too, as thinkers like Averroes synthesized Aristotelian logic with Islamic theology, fostering a rational inquiry that illuminated Europe during its darker ages. Art and architecture reached sublime heights, evident in the intricate designs of the Alhambra and the vast libraries housing translated works from Greek and Persian traditions. This era saw the Abbasid caliphate as a hub of innovation, where diverse minds converged, propelling human knowledge forward. Yet, this brilliance dimmed, and understanding why requires examining underlying practices that, over generations, eroded cognitive vitality.
But a deeper, more insidious cause lies in cultural practices that compounded over time, particularly consanguineous marriages, unions between close relatives like first cousins. These practices, prevalent in most Islamic societies, have persisted for centuries, and evidence suggests they contributed to a gradual but massive cognitive decline, turning once-vibrant civilizations into shadows of their former selves. The decline of the Islamic Golden Age has been attributed to various factors, including the Mongol invasions that sacked Baghdad in 1258, shattering the Abbasid caliphate and dispersing intellectual centers. Political fragmentation followed, with rising orthodoxy stifling free inquiry, as noted by scholars who point to the triumph of religious literalism over philosophical openness. Economic shifts, such as the rerouting of trade away from the Middle East after European maritime discoveries, further weakened the region.
Consanguineous mating increases the likelihood of offspring inheriting two copies of harmful recessive genes, leading to inbreeding depression, a phenomenon where traits like intelligence suffer due to heightened homozygosity. Studies consistently show this impact on IQ, with declines ranging from modest to severe in high-inbreeding populations. For instance, a 1977 study of Israeli schoolchildren revealed that children of first-cousin marriages scored lower on IQ and achievement tests than those from unrelated parents, with even greater deficits in double-cousin offspring, demonstrating a dose-dependent effect. The depression stems from recessive genes, and variance in scores rises among inbred groups, indicating uneven but often pronounced impairments. A broader analysis across 72 countries found a strong negative correlation, r equals -0.62, between consanguineous marriage rates and national IQ, holding even after adjusting for GDP per capita and education. This suggests first-cousin inbreeding depresses IQ by 2.5 to 10 points, with population-level ramifications.
In Japan, a study of over 9,000 children showed a 3.7-point drop in full-scale IQ for offspring of consanguineous parents, mainly first cousins, most evident in tests of general intelligence. Reviews estimate an average 5-point depression for first-cousin children, with ranges of 3.5 to 7.5 points compared to controls. In Pakistan, where such marriages represent 70% of the total, a cohort study reported staggering declines: verbal IQ down 22 points, performance IQ down 27 points, and full-scale IQ down 24 points in inbred children, alongside higher mental retardation rates. The risk escalates with higher inbreeding coefficients. A meta-analysis pegs mental retardation risk at 6.2% for first-cousin matings versus 1.2% for random ones, tied to recessive alleles at hundreds of IQ-affecting loci. In high-consanguinity areas like the Middle East and South Asia, intellectual disability rates hit 6.2% in first-cousin offspring.
These effects compound across generations, as repeated consanguinity heightens genetic load. In populations practicing this over time, homozygosity for harmful alleles grows, amplifying deficits. The 72-country study proposes that individual IQ drops compound via cultural feedback, where reduced cognition hampers education and nutrition, widening gaps. Higher consanguinity degrees, like double first cousins or uncle-niece unions mimicking multi-generational inbreeding, yield severer IQ declines and doubled trait variance. Incestuous matings show mean IQs of 94 versus 102 in controls, with spiked retardation rates. In Asia and Africa, cumulative effects link to diseases and lowered cognition, as persistent homozygosity exposes more alleles. One review notes small per-generation IQ impacts build in endogamous groups. Proportional effects appear: closer relations or higher cumulative coefficients mean greater depression, with animal and human data showing multi-generational effects.
Pakistan exemplifies this tragedy. With consanguineous marriage rates at 70% in 2024, topping global lists, followed by India at 55%, Saudi Arabia at 50%, and Afghanistan at 40%, the practice is entrenched. In Pakistan, nearly two-thirds marry cousins, sustained by intensive kinship, slow development, and cultural norms. First-cousin unions dominate at 27.8% in Afghanistan, with similar patterns across Muslim-majority nations. Over Islam’s 1,403 years, this has transformed societies once leading in science and philosophy into ones lagging behind. National IQ in Muslim countries averages 81, half a standard deviation below non-Muslim nations. Pakistan’s average IQ is estimated at 70, ranking low globally, attributed partly to substandard education but fundamentally to genetic factors from inbreeding. Immigrants from the Middle East show IQs a third below European averages. This decline, compounded generationally, explains why the Islamic world, post-Golden Age, fell into backwardness, with innovation stifled and progress halted.
A reader might wonder if environmental factors alone suffice to explain this shift. Not necessarily. While poverty and conflict play roles, the consistency of genetic evidence across controlled studies points to inbreeding as a core contributor. Consider how, in isolated communities, founder effects concentrate mutations, leading to clusters of disabilities. In Bedouin groups, generations of cousin marriages have spiked severe intellectual disabilities via specific genes. This accumulation, over centuries, erodes societal intelligence, much like how temporal parts of an object must align for persistence, but here misalignment fragments potential.
This issue extends to the West, where economic migrants from these regions import practices, straining resources and compatibility. Pakistanis and others from Islamic countries migrate en masse to Europe, England, Canada, and the U.S., often as economic refugees fleeing home failures. In the U.S., Pakistani immigrants faced post-9/11 challenges, but economic drivers persist, with remittances bolstering Pakistan’s economy at $1B annually. These migrants, often the least capable in their origins, seek support, but do not assimilate, retaining high inbreeding rates. In the U.K., over 50% of Pakistanis marry first cousins, similar to home rates, leading to higher genetic disorders. In diaspora, limited options may push rates above 80%, increasing genetic load.
Islamic nations, once beacons of intellectual achievement during the Golden Age, have suffered a profound decline, exemplified by Pakistan, where consanguineous marriages prevail at rates around 70%, causing widespread inbreeding depression that diminishes cognitive capacities across generations. With an average national IQ estimated at 80, a significant portion of the population lacks the brainpower for advanced functions like innovation and governance, hindering modern success. The least capable often migrate westward as economic refugees, drawn by societies practicing suicidal empathy that burdens their own stability. In Europe, England, Canada, and the U.S., these migrants import traditions like inbreeding, which worsens in diaspora due to fewer marital options, raising rates and risks of cognitive impairments. They cling to devout Islam, resisting assimilation, as low IQ impedes integration and fosters reliance on teachings favoring communal loyalty over civic duty. In the U.K., this has intensified, with Muslim voters leveraging demographic shifts to elect a record 25 Muslim MPs in 2024, reshaping politics toward greater Islamic influence and eroding civic unity, a development harmful to Western values. To endure, the West must halt such migration until Islamic countries ban inbreeding, reform religion for modernity, and abolish Sharia law.
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Consider the trajectory of civilizations, much like the persistence of objects through time. A society, at its peak, extends its influence across eras, but disruptions can fragment that continuity. The Islamic world once exemplified such extension, during what historians call the Golden Age, roughly from the eighth to the thirteenth century. In that period, Muslim scholars in Baghdad and Cordoba advanced mathematics, with algebra refined by al-Khwarizmi, medicine through Ibn Sina’s comprehensive texts, and astronomy via precise observations that influenced Copernicus. Philosophy flourished too, as thinkers like Averroes synthesized Aristotelian logic with Islamic theology, fostering a rational inquiry that illuminated Europe during its darker ages. Art and architecture reached sublime heights, evident in the intricate designs of the Alhambra and the vast libraries housing translated works from Greek and Persian traditions. This era saw the Abbasid caliphate as a hub of innovation, where diverse minds converged, propelling human knowledge forward. Yet, this brilliance dimmed, and understanding why requires examining underlying practices that, over generations, eroded cognitive vitality.
But a deeper, more insidious cause lies in cultural practices that compounded over time, particularly consanguineous marriages, unions between close relatives like first cousins. These practices, prevalent in most Islamic societies, have persisted for centuries, and evidence suggests they contributed to a gradual but massive cognitive decline, turning once-vibrant civilizations into shadows of their former selves. The decline of the Islamic Golden Age has been attributed to various factors, including the Mongol invasions that sacked Baghdad in 1258, shattering the Abbasid caliphate and dispersing intellectual centers. Political fragmentation followed, with rising orthodoxy stifling free inquiry, as noted by scholars who point to the triumph of religious literalism over philosophical openness. Economic shifts, such as the rerouting of trade away from the Middle East after European maritime discoveries, further weakened the region.
Consanguineous mating increases the likelihood of offspring inheriting two copies of harmful recessive genes, leading to inbreeding depression, a phenomenon where traits like intelligence suffer due to heightened homozygosity. Studies consistently show this impact on IQ, with declines ranging from modest to severe in high-inbreeding populations. For instance, a 1977 study of Israeli schoolchildren revealed that children of first-cousin marriages scored lower on IQ and achievement tests than those from unrelated parents, with even greater deficits in double-cousin offspring, demonstrating a dose-dependent effect. The depression stems from recessive genes, and variance in scores rises among inbred groups, indicating uneven but often pronounced impairments. A broader analysis across 72 countries found a strong negative correlation, r equals -0.62, between consanguineous marriage rates and national IQ, holding even after adjusting for GDP per capita and education. This suggests first-cousin inbreeding depresses IQ by 2.5 to 10 points, with population-level ramifications.
In Japan, a study of over 9,000 children showed a 3.7-point drop in full-scale IQ for offspring of consanguineous parents, mainly first cousins, most evident in tests of general intelligence. Reviews estimate an average 5-point depression for first-cousin children, with ranges of 3.5 to 7.5 points compared to controls. In Pakistan, where such marriages represent 70% of the total, a cohort study reported staggering declines: verbal IQ down 22 points, performance IQ down 27 points, and full-scale IQ down 24 points in inbred children, alongside higher mental retardation rates. The risk escalates with higher inbreeding coefficients. A meta-analysis pegs mental retardation risk at 6.2% for first-cousin matings versus 1.2% for random ones, tied to recessive alleles at hundreds of IQ-affecting loci. In high-consanguinity areas like the Middle East and South Asia, intellectual disability rates hit 6.2% in first-cousin offspring.
These effects compound across generations, as repeated consanguinity heightens genetic load. In populations practicing this over time, homozygosity for harmful alleles grows, amplifying deficits. The 72-country study proposes that individual IQ drops compound via cultural feedback, where reduced cognition hampers education and nutrition, widening gaps. Higher consanguinity degrees, like double first cousins or uncle-niece unions mimicking multi-generational inbreeding, yield severer IQ declines and doubled trait variance. Incestuous matings show mean IQs of 94 versus 102 in controls, with spiked retardation rates. In Asia and Africa, cumulative effects link to diseases and lowered cognition, as persistent homozygosity exposes more alleles. One review notes small per-generation IQ impacts build in endogamous groups. Proportional effects appear: closer relations or higher cumulative coefficients mean greater depression, with animal and human data showing multi-generational effects.
Pakistan exemplifies this tragedy. With consanguineous marriage rates at 70% in 2024, topping global lists, followed by India at 55%, Saudi Arabia at 50%, and Afghanistan at 40%, the practice is entrenched. In Pakistan, nearly two-thirds marry cousins, sustained by intensive kinship, slow development, and cultural norms. First-cousin unions dominate at 27.8% in Afghanistan, with similar patterns across Muslim-majority nations. Over Islam’s 1,403 years, this has transformed societies once leading in science and philosophy into ones lagging behind. National IQ in Muslim countries averages 81, half a standard deviation below non-Muslim nations. Pakistan’s average IQ is estimated at 70, ranking low globally, attributed partly to substandard education but fundamentally to genetic factors from inbreeding. Immigrants from the Middle East show IQs a third below European averages. This decline, compounded generationally, explains why the Islamic world, post-Golden Age, fell into backwardness, with innovation stifled and progress halted.
A reader might wonder if environmental factors alone suffice to explain this shift. Not necessarily. While poverty and conflict play roles, the consistency of genetic evidence across controlled studies points to inbreeding as a core contributor. Consider how, in isolated communities, founder effects concentrate mutations, leading to clusters of disabilities. In Bedouin groups, generations of cousin marriages have spiked severe intellectual disabilities via specific genes. This accumulation, over centuries, erodes societal intelligence, much like how temporal parts of an object must align for persistence, but here misalignment fragments potential.
This issue extends to the West, where economic migrants from these regions import practices, straining resources and compatibility. Pakistanis and others from Islamic countries migrate en masse to Europe, England, Canada, and the U.S., often as economic refugees fleeing home failures. In the U.S., Pakistani immigrants faced post-9/11 challenges, but economic drivers persist, with remittances bolstering Pakistan’s economy at $1B annually. These migrants, often the least capable in their origins, seek support, but do not assimilate, retaining high inbreeding rates. In the U.K., over 50% of Pakistanis marry first cousins, similar to home rates, leading to higher genetic disorders. In diaspora, limited options may push rates above 80%, increasing genetic load.
Islamic nations, once beacons of intellectual achievement during the Golden Age, have suffered a profound decline, exemplified by Pakistan, where consanguineous marriages prevail at rates around 70%, causing widespread inbreeding depression that diminishes cognitive capacities across generations. With an average national IQ estimated at 80, a significant portion of the population lacks the brainpower for advanced functions like innovation and governance, hindering modern success. The least capable often migrate westward as economic refugees, drawn by societies practicing suicidal empathy that burdens their own stability. In Europe, England, Canada, and the U.S., these migrants import traditions like inbreeding, which worsens in diaspora due to fewer marital options, raising rates and risks of cognitive impairments. They cling to devout Islam, resisting assimilation, as low IQ impedes integration and fosters reliance on teachings favoring communal loyalty over civic duty. In the U.K., this has intensified, with Muslim voters leveraging demographic shifts to elect a record 25 Muslim MPs in 2024, reshaping politics toward greater Islamic influence and eroding civic unity, a development harmful to Western values. To endure, the West must halt such migration until Islamic countries ban inbreeding, reform religion for modernity, and abolish Sharia law.
If you enjoy my work, please subscribe: https://x.com/amuse.
Sponsored by the John Milton Freedom Foundation, a nonprofit dedicated to helping independent journalists overcome formidable challenges in today’s media landscape and bring crucial stories to you.
READ NEXT: Conservatives Call For Vote To Repeal Cornyn Gun Control Scheme
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