200 years later, hardly enough people lived there to fill the Colosseum.
And their story feels alarmingly familiar... (thread) 🧵
Fertility has collapsed so rapidly in modern Italy that 1 million births in 1964 is down to <400k last year.
The state is even giving away homes for €1 to repopulate crumbling villages...
Italy's birth rate is 1.2, but the most catastrophic in the world is South Korea: 0.72 children per woman.
The number of births in South Korea will halve every 20 years at this rate.
But aren't rich country populations still growing?
Yes, for now — because people are living longer and the population is aging. The US will soon have more over 65s than children.
When the population does start to fall, it will compound at terrifying speed.
Italy is already entering its decline, and the last Italian could be born in under 200 years from now.
The problem is that when societies enjoy a sustained period of wealth, birth rates tend to decline thereafter.
The same is true of civilizations throughout history. Why, exactly?
It seems counterintuitive, but it can be explained.
In Ancient Rome, the wealthy became more concerned with status than with family — no children to inherit your wealth meant you could use it instead to acquire status and influence.
Analysis of skeletons in Herculaneum has shown wealthy women were having <2 children on average.
A big problem when the replacement rate is 6+ due to high infant mortality...
When the population drops off, you don't just get to enjoy more space and cheaper housing — everything falls apart.
Rome's buildings were slowly picked apart for their materials by a small population with no use for great arenas.
Of course, Rome's urban population collapsed for other reasons, too: invasion, disease, famine...
But these were problems they had overcome before. This time, Rome had eaten itself from within first.
People think Rome fell to conquest. But by the time of the 5th century invasions, it had long ago fallen to something worse — total apathy.
Rome had long since stopped producing Romans.
To hold the crumbling Empire together, Rome had for decades imported masses of barbarians to supply its armies.
When the last Western Emperor was deposed in 476 AD, it was by barbarians within his own ranks.
Rome fell not in a day, but over several generations — although not as many as you think.
The colosseum went from a roaring crowd of 80,000 to livestock roaming its ruins so quickly it's hard to believe...
If you enjoy threads like this, I go deeper in my FREE newsletter on these kinds of topics.
Tolkien penned some of our civilization's greatest works, but you may not know *why* he did — or how.
His stories are so enduringly real because he actually lived them... (thread) 🧵
This was Tolkien's resume before authoring any books:
• Linguist (spoke ~15 languages)
• Conlanger (invented 15 more of his own)
• Soldier (fought at the Somme in WW1)
• Professor (Anglo-Saxon studies at Oxford)
• Code-breaker (recruited for WW2)
In fact, he only published his first book at age 45 (The Hobbit), and LOTR was released in his 60s.
Why do his stories feel so timeless and real? Because he lived them himself...
I asked X: "Which book changed your perspective on life more than any other?"
After THOUSANDS of replies, these were the top 50.
The ultimate 2025 reading list… (bookmark this) 🧵
Note: Titles within each section are ordered roughly by how frequently they were suggested.
By FAR the most popular suggestion of all was the Holy Bible — so here are the top theological works...
Theology:
1. Mere Christianity, C.S. Lewis 2. Orthodoxy, G.K. Chesterton 3. The City of God, Augustine of Hippo 4. Summa Theologica, Thomas Aquinas 5. Confessions, Augustine of Hippo