𝗡𝗲𝗼𝘁𝗲𝗻𝘆 is immediately obvious in humans: 👶 Big eyes 👶 Round faces 👶 Small jaws & flat noses 👶 Long playful childhoods Without it, we wouldn’t be human. It gave us big brains, flat faces, and extended youth; the foundations of language, culture, and civilization. (2/)

But the most important thing about 𝗻𝗲𝗼𝘁𝗲𝗻𝘆 is how it slowed our brain development & gave humans prolonged neuroplasticity. 🧠 That extra learning time is why we have language, culture & civilization and why animals don't. It's literally what separates us from animals. (3/)

Humans are overall highly neotenous compared to animals. But it also varies across human groups: 🔹 Highest → Northern Europeans & East Asians 🔹 High → Southeast Asians 🔹 Moderate → South Asians 🔹 Lower → Sub-Saharan Africans & Australo-Melanesians The reason? Genes👇(4/)

The key genes linked to high 𝗻𝗲𝗼𝘁𝗲𝗻𝘆: 🧬 SRGAP2C → brain growth 🧬 FOXP2 → language & communication 🧬 OXTR → empathy 🧬 EDAR V370A → youthful physical traits 🧬 ASPM → brain size These markers are mostly absent in Sub-Saharan African & Australo-Melanesian groups (5/)

𝗡𝗲𝗼𝘁𝗲𝗻𝘆 also effects the length of childhood. The longer the childhood, the longer the brain has to develop. 🧠 For example: 📊White American girls get their period ~13 yrs 📊Black American girls: ~8 yrs 📊Not long ago, girls in Norway got their first period ~17 yrs! (6/)

𝗡𝗲𝗼𝘁𝗲𝗻𝘆 also rewires the brain—and changes behavior. 🧠 – High neoteny → cooperation, empathy, trust, creativity, problem-solving, impulse control – Low neoteny → aggression, conflict, indifference, impulsivity, short-term thinking Civilization vs. survival wiring. (7/)

High-neoteny societies reflect their genetics. 🧬 🇯🇵 Japan is one of the world’s highest-trust cultures. At the World Baseball Classic, a young woman caught a Shohei Ohtani HR ball. Someone asked to see it. And then it was passed around the entire stadium… and returned! ⚾ (8/)

Low-neoteny groups of individuals show the opposite genetic wiring. 🧬 🛒 In a Nike store, a crowd floods in; filling bags, grabbing anything, running out. No sharing. No trust. Just raw impulsivity. This is survival brain wiring; rooted in low-neoteny genetics. (9/)

High-neoteny civilizations achieve astonishing feats: 🧱 Aqueducts 🏙️ Skyscrapers 🚀 Space travel Low-neoteny societies? They remain closer to our nomadic past: mud huts, thatch, temporary survival shelters built from whatever’s at hand. Civilization vs. survival genes. 🧬 (10/)

Across cultures, humans prefer mates with neotenous traits; and it makes sense biologically. 🧬 More neotenous children ⬇️ Slower maturation ⬇️ Longer brain growth ⬇️ Extended neuroplasticity ⬇️ Higher intelligence ⬇️ Better survival ⬇️ Greater reproductive success. (11/)

What happens when someone with extreme 𝗻𝗲𝗼𝘁𝗲𝗻𝘆 appears in a culture that’s never seen it? 🧬 👤 They instantly stand out. They're seen as hyper-attractive. 👥 In a crowd wired for aggression😡, impulsivity⚡, and low self-control❌. 🚨And it endangers women & kids. (12/)

What if a high-neoteny nation is invaded by a low-neoteny group? 🧬 High-neoteny people see aggression as a problem to fix. But a group wired for dominance doesn’t want to be uplifted. It wants to win. ⚔️ Empathy shown to those who see it as weakness only makes you prey. (13/)

“The barbarians at the gates”🏛️ This phrase comes from Rome, a high-neoteny society that saw outsiders as “uncivilized” and tried to Romanize them. 🤝 The barbarians saw weakness, exploited it, and Rome fell. ⚔️ Europe then endured 1,000 years of Dark Ages before recovery. (14/)

The lesson from Ancient Rome; and from today: Guard your borders. Guard your culture. 🧬 A high-neoteny nation that does this may be hated… But when others collapse into imported chaos, it will be the last one standing. 🏛️ And the truth is, they already hate you anyway. (15/)

Look around today. 🌍 High-neoteny groups that guard their nations preserve their culture. 🏛️ Low-neoteny nations? Chaos, corruption, collapse. ⚔️ And now Japan is designating towns to import immigrants from Africa; triggering the same wiring clash that once doomed Rome. 🧬 (16/)