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Mind & Meaning
The psychology of ambition, isolation, and meaning under extremes — and what frontier life teaches us about being human.
By 2035, the global space economy is predicted to reach roughly $1.8 trillion in annual value — up from approximately $630 billion in 2024 — driven by satellite mega-constellations, Earth observation services, commercial space stations, and the early stages of lunar resource extraction, in a quiet industrial revolution that many economists believe will exceed the speed of every previous economic transition in modern history
In the 1990s, anthropologist Robin Dunbar argued there's a natural ceiling on friendship set by the size of the human brain — around 150 people we can hold a real relationship with
Humans are one of very few species whose females live for decades after they can no longer have children. One explanation is the 'grandmother hypothesis': long life may have evolved because grandmothers who helped gather food and raise grandchildren allowed more of those children to survive — quietly selecting, over generations, for longevity itself
Research into the neuroscience of social rejection has shown that the brain regions that activate when a person is excluded, rejected, or grieving a lost relationship are the same regions that activate during physical injury, with the overlap being so substantial that a standard over-the-counter painkiller measurably reduces both kinds of pain, because the human brain has co-opted the physical pain system to register damage to social bonds
Your own voice sounds different to other people than it sounds to you, because the version you hear is reaching your inner ear partly through the bones of your skull, which amplify lower frequencies that everyone else cannot hear — and the recorded version that strikes most people as alien when they first hear it is in fact the only version of their voice anyone else has ever known
The number of people living past the age of 80 worldwide is projected to triple by 2050 — from approximately 145 million today to roughly 426 million — making the over-80 cohort the fastest-growing demographic on the planet, in a civilizational shift now widely referred to as "the silver tsunami" and that researchers expect to redefine almost everything we associate with the structure of human society
By 2050, more than half of the world's population is projected to be myopic — needing glasses or contacts to see clearly at a distance — according to a series of international vision studies, in a shift driven not by genetics but by the amount of time children now spend indoors and the relative absence of time spent focusing on the horizon during the years when the eye is still forming
Within the lifetime of children being born today, the global human population is projected to begin shrinking for the first time since the Black Death — no country on Earth currently has a fertility rate above 7 children per woman, and dozens of high-income nations have fallen below 1.5 — in a civilizational shift that demographers now expect to end the era of sustained population growth that has defined humanity for the past several thousand years
A small spongy artifact found in 2021 in the corner of a Neolithic oven in central Turkey was identified in 2024 as a piece of fermented bread roughly 8,600 years old — placed by someone in the doorway of a mud-brick house at Çatalhöyük around 6600 BCE, in what archaeologists believe is the oldest fermented bread ever discovered, and the oldest direct evidence of the human relationship with yeast
The map of a lost Mayan megacity, with more than 6,000 buildings and a peak population of 50,000 people, had been hiding in plain sight for ten years inside a government survey of the Mexican rainforest — until a PhD student at Tulane University scrolled past page 16 of a Google search in 2024 and recognized what was in the scan
