Ashraqat Dawood

“A hunter-gatherer mother who is shifting camp can carry only one child, along with her few possessions. She cannot afford to bear her next child until the previous toddler can walk fast enough to keep up with the tribe and not hold it back. In practice, nomadic hunter-gatherers space their children about four years apart by means of lactational amenorrhea, sexual abstinence, infanticide, and abortion. By contrast, sedentary people, unconstrained by problems of carrying young children on treks, can bear and raise as many children as they can feed. The birth interval for many farm peoples is around two years, half that of hunter-gatherers. That higher birthrate of food producers, together with their ability to feed more people per acre, lets them achieve much higher population densities than hunter-gatherers.”
― Jared Diamond, Guns, Germs, and Steel: The Fates of Human Societies

“Η τελειότητα είναι μια δύσκολη, επικίντυνη στιγμιαία ισορροπία απάνω στο χάος, λίγο να ρίξεις βάρος δεξιά η αριστερά, γκρεμίζεται.”
― Nikos Kazantzakis, Journeying: Travels in Italy, Egypt, Sinai, Jerusalem and Cyprus

“You would not infer causality at all. Not only do you not infer that your neighbor is angry because you left the gate open and her dog got out, you don’t infer that the dog got out because you left the gate open. You don’t infer that the car won’t start because you left the radio on. While you would be good at spatial relations, you would not grasp the causes and effects described by physics. You will not infer any unobserved causal forces, whether they be gravitational or spiritual. For example, you would not infer that a ball moved because a force was transferred to it when it was hit by another, yet because of your inability to draw inferences, you would do better in Vegas at the gaming tables. You would bet with the house and not try to infer any causal relationship between winning and losing other than chance. No lucky tie or socks or tilt of the head. You would not string out some cockamamy story about why you did something or felt some way, not because you aren’t capable of language, but again because you don’t infer cause and effect. You won’t be a hypocrite and rationalize your actions. You would also not infer the gist of anything, but would take everything literally. You would have no understanding of metaphors or abstract ideas. Without inference you would be free of prejudice, yet not inferring cause and effect would make learning more difficult. What processing comes bubbling up in your separate hemispheres determines what the contents of that hemisphere’s conscious experience will be.”
― Michael S. Gazzaniga, The Consciousness Instinct: Unraveling the Mystery of How the Brain Makes the Mind

“tests of cognitive ability (like IQ tests) tend to measure cultural learning and not pure innate intelligence, whatever that is.”
― Jared Diamond, Guns, Germs, and Steel: The Fates of Human Societies