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[The Malthusian trap is a core component of the grand historical cycle. To break it down, it's the brutal conflict between exponential population growth and limited resources. Too many mouths, not enough food. Simple math, terrible consequences.
If we zoom out and look at this from a macro perspective, we can see this trap operating since the literal dawn of biological life. Millions of years ago, primitive algae and ancient plant life experienced unchecked population growth. They rapidly consumed the available carbon dioxide in the atmosphere. This resource drain altered global oxygen levels. The resulting environmental collapse triggered extinction events and plunged the planet into an Ice Age.
Even basic plant life couldn't escape the Malthusian trap. If algae can mess up that badly, imagine what humans can do.
Viewing things through a historical lens, the underlying mechanics remain the same. The ancient migrations of early humans, the bloody cycles of feudal dynasties rising and shattering, and even the dawn of the Industrial Revolution all share a common engine. At the end of the day, human history is driven by the friction between a booming population and the limited materials needed to keep that population alive.
It's the ultimate bottleneck.
You can even observe this phenomenon on a microscopic level. The daily survival wars fought by single-celled microorganisms are as vicious and unforgiving as human conflicts. In fact, you can view modern antibiotics as the apocalyptic weapons developed by bacteria fighting their own resource wars.
Everyone's fighting for the same scraps.
The Malthusian trap is an unbreakable chain. It's a biological shackle etched into the DNA of every living organism on earth. However, this same brutal pressure is the sole catalyst for evolution. Biological species adapt to survive the trap. Feudal dynasties operated on the same logic.
The establishment of the Tang Dynasty was, in essence, a temporary escape from this trap.
But the entry fee was written in blood.
From the era of the Northern Wei all the way to the dawn of the early Tang, the Chinese mainland was engulfed in horrific warfare. Emperors like Yang Guang of Sui launched military campaigns and vanity projects that drained the population dry. This scale of human destruction resulted in a drop in the total population. Millions simply vanished from the census rolls.
The land was littered with empty villages and abandoned farms.
Yang Guang inherited a kingdom of 46 million people. By the time his dynasty fell, only 16 million remained. Thirty million gone in a single generation. Three failed invasions of Goguryeo. A Grand Canal built on the bones of five million conscripts. Hyperinflation that made coins worthless. And over two hundred rebellions across the empire.
He built a legacy, sure. But the foundation was corpses.
With the population decimated, vast tracts of previously occupied farmland were left ownerless.
The state naturally swept in and nationalized all this territory. The early Tang government used this surplus of empty land as their foundational capital. They rolled out the Juntian system, which distributed land equally to the surviving peasants. They paired this with the Zuyongdiao system, an efficient tax code based on grain, labor, and textiles. These specific policies laid the bedrock for the Tang Dynasty's economic and military supremacy.
A brutal reset, but it worked.
The Japanese, however, faced a different reality.
They initiated the Taika Reforms, which boosted their national strength. However, the Japanese central government executed a compromised version of the Chinese model. To acquire land for redistribution, the Japanese court had to bribe their aristocratic clans with political privileges. They rolled out the Handen Shuju system. It was basically a plagiarized, watered-down version of the Tang Equal Field system.
Here was the fatal flaw. The Taika Reforms distributed land based on headcounts, and they deliberately included slaves in that headcount. The Japanese aristocrats already owned armies of slaves. Therefore, the nobles supported the reforms. On paper, the slaves received plots of land. In reality, the nobles simply absorbed those new land grants directly into their own private estates.
A classic loophole.
Because of this, even modern Japanese historians widely agree that post-reform Japan never actually transitioned into a true feudal state. It was merely a deformed, mutated continuation of a slave-owning society. They copied the form but not the function. All dressed up with nowhere to go.
So, when the Tang and the Japanese finally clashed on the battlefield, the matchup was hilariously one-sided. It was a fully-formed feudal empire stepping on a deformed, compromised slave society. The absolute victory of the Tang Dynasty was a mathematical certainty. You honestly could not find a single logical reason for the Tang military to lose that war.
The tragic part of this historical narrative happened later. Every time a Chinese dynasty managed to crawl out of the Malthusian trap, their political systems evolved in the same rigid directions. They obsessed over agriculture. They suppressed commercial trade. They launched purges to clean up government corruption. They consolidated power into the hands of the Emperor. They trapped themselves in a cycle of small-scale agrarian involution.
Digging deeper into the same hole.
As a direct result of this internal focus, the Chinese empires completely missed out on the world-changing tools capable of permanently breaking the Malthusian trap.
For example, why ignore the Indochinese peninsula? Down south, they cultivated Champa rice. From the moment you plant the seed to the moment you harvest the crop takes a mere fifty days. Does that not sound appealing?
A crop that grows faster than your average bureaucrat's excuses.
Or what about the Americas? The corn they grew over there was practically a divine artifact. If ancient farmers had gotten their hands on that, history might have looked very different.
While editing this video, your host got curious and looked up some modern agricultural statistics.
Currently, the highest recorded yield for wheat is 1042 kilograms per mu of land. The highest recorded yield for modern rice is 1149 kilograms per mu.
But corn is the true heavyweight champion. The record yield for corn is a mind-bending 2576 kilograms per mu. To an ancient farmer, these numbers would sound like literal mythology.
They'd probably think you were lying to their face.]
The concept of a 'kilogram' was not a mystery to Zhuge Liang and his colleagues.
During a previous broadcast concerning the financial crisis of the Han dynasty, the future narrator had explicitly discussed the weight of gold horseshoe ingots. That specific lesson had provided a clear conversion rate between ancient Han measurements and modern metric weights.
Because they already had the formula, the math was straightforward. Liu Bei did the mental calculations in his head. He instantly arrived at an estimate.
His brush stopped mid-stroke. Ink dripped onto the parchment, but he did not notice.
"Thirty-eight... oh heaven, is that real?" Liu Bei whispered. His voice cracked. "Thirty-eight shi per mu?"
He looked up. His eyes were wide, bloodshot, practically bulging out of his skull. He looked like a man who had just been told the sky was falling.
"Last year," Liu Bei said, his voice rising, "the Chengdu plain. Our best farmers. Composting techniques. Good weather. Good soil." He was breathing heavily now. "Three point five shi per mu. THREE POINT FIVE!"
He slammed his fist on the table. The ink stone jumped.
"Ten times! This Champa rice yields TEN TIMES what we can produce!" Liu Bei's voice was shaking. "Ten times! Do you understand what that means? That is not farming. That is sorcery!"
He could not finish the sentence. He just stared at the parchment like it was going to bite him.
The geopolitical fate of the Japanese nation? Who cared. The philosophical nuances of the Malthusian trap? What was that.
Nothing else mattered. The numbers had hit him like a brick to the skull. He was still conscious, technically, but his brain had checked out for the day.
"And this corn, big brother..." Zhang Fei's voice was a low growl. He was staring at his own calculations, his face turning red. "Eighty-five shi per mu?"
He looked up at Zhuge Liang. "Kongming. Tell me this is wrong. Tell me I calculated this wrong."
Zhuge Liang did not answer. He just kept writing.
Zhang Fei's hands were shaking. He ran through the math again. And again. And again. The result remained identical.
His calligraphy brush slipped from his numb fingers and clattered against the wooden floorboards. He did not even notice.
"Eighty-five," Zhang Fei whispered. Then louder. "EIGHTY-FIVE SHI PER MU!"
He stood up so fast his chair toppled over. "I have farmed my whole life! I know what it takes to coax a single stalk of wheat from the earth! The backbreaking labor! The years of waiting! The prayers to heaven for rain!"
He was panting now, his chest heaving. "Eighty-five shi from one mu? That is not possible. That is..."
He looked at Liu Bei. His older brother's face was ashen.
"Brother," Zhang Fei said, his voice breaking. "If we had this corn during the famine years... we would not have lost so many people. We could have..."
He could not finish. The implication was too heavy.
Compared to the warlord and the general, Zhuge Liang remained an ocean of calm. But even his calm was different now. It was not the calm of someone who had not understood. It was the calm of someone who had understood everything and was processing the implications.
He methodically arranged his notes. His hands were steady, but his eyes were burning with something intense.
"This Champa rice and this miraculous corn," Zhuge Liang said softly, "are merely the fruits of the tree. They are the results, not the root cause."
He tapped his fan against his palm. Once. Twice. Three times.
"If we wish to launch naval expeditions to acquire these crops, we cannot rely on blind luck. We need that sextant instrument from a thousand years in the future. To build a sextant and sail the deep ocean, we must master astronomy."
Zhuge Liang's eyes gleamed with a cold, piercing intellect. "To understand the stars, we must study mathematics. And through the study of mathematics, this concept of science will naturally flourish. This validates what the future generations declared earlier. Science and technology are the primary productive forces."
Pang Tong had been silent this whole time. Now he slowly nodded. His face was twisted in an expression of awe. Not the polite awe of understanding, but the visceral awe of having your entire worldview shattered.
"The people of the future..." Pang Tong's voice was barely a whisper. "They walked on the moon."
He looked up at the ceiling, as if he could see through it to the stars. "They understood the scale of the heavens and the earth. They sailed metal ships through the void of space to inspect the secrets of the cosmos."
He looked back at the parchment with the agricultural statistics. "Considering those godly achievements, engineering a super crop that yielded eighty-five shi per mu was honestly pretty standard behavior. It was expected."
Pang Tong leaned back and sighed deeply. The scope of the future perspective was intoxicating. It was terrifying. It was beautiful.
"They look up and map the stars," Pang Tong muttered. "They look down and dissect the microbial world. Looking backward, they trace the biological origins of humanity. Looking forward, they mathematically calculate the rise and fall of every empire."
His voice was trembling now. "The vision of these future people transcends mortal limits. Are they still human?"
Hearing this, Zhuge Liang felt an urgent desire ignite within his chest. The need to establish academies and institutionalize this scientific method was overwhelming. It was not just intellectual curiosity anymore. It was survival.
As Zhuge Liang diligently copied down every word from the broadcast for later analysis, Pang Tong fixated on a terrifying phrase.
"The grand historical cycle?" Pang Tong chewed on the words like they were poison.
He felt like he understood the premise of the concept, but the mechanics remained elusive. It was like trying to admire a flower through a layer of morning fog. The shape was there, but the details were blurred.
Zhuge Liang remained silent for a moment. He dipped his brush in fresh ink and began writing slowly.
"In the second year of the Zhongyuan era, our Han Dynasty recorded a population of four million registered households," Zhuge Liang stated clearly. "By the third year of the Yongshou era, the population had exploded to over ten million households. A century passed, and the population of the empire more than doubled."
He paused, letting the ink dry on the paper. The silence in the room was heavy.
"However, over that same century, the grain yield per mu of farmland increased by less than half a shi."
On the white paper, Zhuge Liang had written two isolated sets of numbers. Population growth on the left. Grain yield on the right.
The contrast was stark. It was horrifying.
Liu Bei stared at those numbers. His face turned pale. Then white. Then gray.
"If we cannot increase the yield of the crops," Liu Bei said, his voice hollow, "then the only solution is to clear forests and open up more virgin land for farming."
Then his face darkened. His eyes narrowed. "But that is impossible!"
A cynical smile twisted Liu Bei's lips. He saw the political reality with crystal clarity.
"The aristocratic clans annex all the good land. Corrupt officials manipulate the tax codes to ruin the small farmers. The population multiplies, but the common people own less and less soil."
His voice was rising now, filled with decades of frustration. "When a man loses his field and cannot feed his children, how can society not descend into chaos?"
Before the clash at Red Cliffs, if you had asked Liu Bei why the Han Dynasty fell into ruin, he would have confidently recited a list of villains.
He would have blamed the manipulated Emperors. He would have cursed the Ten Eunuchs who poisoned the court. He would have condemned Zhang Jiao for raising the Yellow Turban rebellion. He would have spat on Dong Zhuo for his cruelty. And he would have cursed Cao Cao for taking the Emperor hostage.
But now? After surviving decades of warfare and seeing the hidden mechanics of history revealed, Liu Bei mentally crossed those names off his list one by one.
He thought specifically of Zhang Jiao. What was his crime? The Han Dynasty created a system where Zhang Jiao and his followers were guaranteed to starve to death. Was he simply supposed to lie down in the dirt and die quietly to maintain the peace?
A chaotic era is never caused by the malice of a single villain. It is the math of a failing system.
Liu Bei clapped his hands together loudly. The sharp sound snapped his advisors out of their gloomy philosophical thoughts.
"A true man is born into this world to forge lasting peace!" Liu Bei declared, his voice ringing with authority. "Now that we fully comprehend the logic of the future generations, we possess the tools to cure this century of chaos. There is no reason we should surrender this empire to a thief like Cao Cao!"
He began issuing rapid-fire orders.
"Our priority remains securing the northern passes and taking Guanzhong. Simultaneously, we must pressure General Wu Yi to finish pacifying the southern jungles. The moment Nanzhong is secure, I am dispatching imperial guards down the southern trade routes. We are going to find this Indochinese peninsula, and we are going to extract those Champa rice seeds!"
The geographic location was not a mystery to the seasoned veterans in the room. Indochina was just further south past Jiaozhou province.
They already controlled trade routes branching off the main roads leading to India. Sending an expeditionary force to acquire a miraculous crop that matured in fifty days was no longer a theoretical debate. It was a necessity.
---
Inside the Ganlu Hall of the Tang Dynasty, Li Shimin proved once again that he was the pragmatist.
"Draft an immediate imperial edict to the Annan Protectorate in the south," Li Shimin ordered, his voice cold and decisive. "Command them to locate and present the seeds for this Champa rice to the throne immediately."
He narrowed his eyes, exuding an aura of martial power. "If those southern tribes refuse to offer this treasure to the Great Tang, I will personally march an army down there and rip it from their soil!"
None of the ministers inside the Ganlu Hall dared to step forward and advise caution. Not even the stubborn Wei Zheng uttered a single word of protest.
The agricultural potential of a fifty-day harvest cycle was simply too mind-bending to ignore.
Consider the current reality of Tang agriculture. From the moment a farmer buried a rice seed in the mud to the moment he swung his sickle, over one hundred and twenty days had to pass.
Fifty days. Fifty days. The number kept echoing in Wei Zheng's mind.
A crop that halved the growing season was not just a plant. It was a divine omen. It was an auspicious blessing from the heavens. It was the kind of miracle that made emperors weep and generals drop to their knees.
Wei Zheng had zero intention of lecturing the Emperor about acting too aggressively. In fact, he was fighting the urge to scream at the southern tribes himself.
Why wait for diplomatic channels? Wei Zheng thought, his mind racing. Why trust the local tribal leaders to deliver the goods? We should send cavalry. Cavalry. Armed. Ride south tonight. Secure the seeds by dawn.
But then he reviewed the geography. The Lingnan region was lethal. The roads were treacherous, and the jungles were infested with miasma and malaria. Sending northern cavalry into that meat grinder was risky. He decided to keep his mouth shut and trust the diplomatic edict for now.
But his hands were still shaking.
Those southern chieftains better be smart, Wei Zheng thought, his jaw clenched. They better remember what happened to the Eastern Turkic Khaganate when they defied Chang'an. The smartest play is to box up the magic rice, ship it north, and avoid angering the most dangerous military machine on the planet.
Having decisively settled the Champa rice issue, Li Shimin pivoted to the next piece of intelligence.
"Where exactly is this America?" the Emperor asked, perplexed.
This was the first time Li Shimin had ever heard the word 'America'. Based on the future descendant's description, it had to be a massive continent. It likely hosted unknown, powerful empires.
The Emperor mentally mapped the globe. The territory ruled by the Tang was part of Asia. The distant lands ruled by the Romans were called Europe. So where did America fit into the puzzle? Li Shimin felt a rare moment of geographic disorientation.
Every minister in the Ganlu Hall shifted their gaze toward the right wall of the chamber. Two detailed maps hung proudly from the wooden beams.
The first was a precise tactical map. It stretched from the Roman Empire in the far west to the Japanese nation in the east. It covered everything from the frozen northern deserts down to the tropical Malacca Strait. It was a comprehensive chart of their known world. Beyond its borders lay terrifying nothingness.
The second map was a conceptual sketch of the entire globe. During a previous broadcast, the magical screen had displayed a spinning blue sphere. Unfortunately, the image had vanished before the globe completed a full rotation. They only managed to sketch a fraction of the planetary surface.
Based on their current, fragmented knowledge, they knew a landmass existed south of Europe. They knew another large landmass sat southeast of the Tang Empire, hidden past a network of island chains. They also suspected a continent lay far to the east, past the Liaodong peninsula.
Seeking clarity, Li Shimin pointed at the conceptual globe.
"This American continent... Is it located directly south of the European nations? Or does it sit far to the southeast of our Tang borders?"
Chancellor Du Ruhui stroked his beard, his mind working to connect the clues.
"Your Majesty, the future descendant explicitly stated that all civilizations are trapped by this Malthusian cycle, yet the Western nations eventually escaped it by utilizing this American corn," Du Ruhui reasoned logically.
"Furthermore, the broadcast implied that acquiring this corn requires crossing oceans. Therefore, I hypothesize that America is either located in the uncharted waters southeast of our empire, or..."
Du Ruhui paused, gesturing toward the flat sketch of the globe.
"...Or it exists entirely on the hidden, opposite side of this spherical world."
The logic was flawless. The deduction was sound. Since no one possessed the technology to instantly verify the claim, Li Shimin was forced to suppress his curiosity.
He shifted his focus back to tangible numbers.
"Can anyone tell me the exact conversion rate?" Li Shimin asked the room. "How many of our shi equal one of their future kilograms?"
He wanted to compare the future American crop yields directly against the current Tang agricultural output.
The top-tier officials of the empire exchanged blank stares. How were they supposed to calculate the math of a thousand years in the future?
Chancellor Fang Xuanling stepped out from the ranks, looking confident. He reminded the court of a specific detail from a past broadcast. When the future descendant was criticizing the historical accuracy of the Book of Jin, they casually mentioned a weight conversion. The descendant had stated that one thousand five hundred jin from the Jin dynasty was roughly equivalent to over three hundred modern kilograms. Using that baseline, calculating the rest was arithmetic.
Du Ruhui hid a smirk behind his sleeve. He found it amusing. The future generation's mockery of the Book of Jin had clearly left a lasting impression on his old friend Fang Xuanling.
Completely unaware of his colleague's amusement, Fang Xuanling rapidly performed the mental math. He announced the results clearly.
"Based on the conversion, the future wheat yields twenty shi per mu. The rice yields twenty-one and a half shi."
Fang Xuanling took a deep breath, his voice trembling slightly as he delivered the final number.
"And the American corn yields... forty-eight and a half shi per mu."
The silence that followed was heavy.
For a moment, nobody moved. Nobody breathed. The number hung in the air like a weight.
Li Shimin's hand, which had been resting casually on the armrest of his throne, curled into a fist. His knuckles turned white.
"Forty-eight," he repeated. His voice was quiet. "Forty-eight shi per mu."
He stood up. The room collectively flinched.
"Tell me again," Li Shimin said, his eyes burning. "What is our current yield for wheat?"
Fang Xuanling swallowed hard. "Your Majesty... our best wheat yields approximately three shi per mu. In the best years. With good weather."
"Three," Li Shimin said flatly. "And the corn yields forty-eight."
He looked around the room. His face was unreadable. Then, slowly, a smile spread across his lips. It was not a happy smile. It was the smile of a predator who had just spotted the prey of his life.
"Sixteen times," Li Shimin whispered. "Sixteen times our current wheat yield."
He walked over to the map table. He stared at the empty space beyond the eastern edge of the known world.
"Imagine," he said, his voice rising, "an empire where every family has enough to eat. Where no mother watches her children starve. Where no father sells his daughter because he cannot afford to feed her."
He turned to face his ministers. His eyes were burning with a fire they had never seen before.
"The Han Dynasty fell because they could not feed their people. The Sui fell because Yang Guang drained the treasury and starved the countryside. But we... we have a chance. We can break the cycle."
He slammed his fist down onto the wooden table.
"Fund the naval shipyards immediately. Assemble the grand fleet. We are sailing beyond the borders of the Tang!"
The ministers erupted into chaos.
"Wei Zheng! You were just lecturing me about the cost of the Korean campaign!" one minister shouted.
"That was before we learned about the corn!" Wei Zheng shot back. "Do you have any idea what forty-eight shi per mu means? It means we can feed an army of a million men without stripping the countryside bare!"
"Where are we even going to find this America?" another minister demanded. "We do not even know if it exists!"
"Of course it exists!" Li Shimin roared. "The screen said it exists! The screen has never lied to us!"
"But Your Majesty, the cost of building a fleet that can cross the ocean..."
"Cost?" Li Shimin laughed. It was an unhinged sound. "Cost? Do you know what the cost of NOT finding this corn will be? The cost of watching my empire starve? The cost of watching another dynasty collapse because we could not feed our people?"
He pointed at the map. "We will find this America. We will find this corn. And we will bring it back. I do not care if it takes ten years. I do not care if it takes a hundred years. We will find it!"
The room fell silent again. The ministers looked at each other. They had seen the Emperor angry before. They had seen him ruthless. But they had never seen him like this.
Li Shimin took a deep breath. His voice dropped to a normal volume, but it carried more weight than his shout had.
"Fang Xuanling. Draft the edict. We are building a navy. We are exploring the east. We will find this America if it is the last thing we do."
He paused. A strange expression crossed his face. "And someone... someone find out what an apple is."