PowerfulJREJoe Rogan Experience #2556 - Siddharth Kara
PowerfulJRE
Reuniting Four Years Later 0:01
Joe Rogan opens by thanking Siddharth Kara for his reporting on the Congo's cobalt mining industry and for the personal risk involved in gathering footage there. Kara notes their first conversation happened in December 2022, nearly four years earlier, and that his book Cobalt Red has continued to resonate with people. He explains he has not returned to the Congo since the book's release because colleagues told him there is now a bounty on him, making it too dangerous. Despite not going back himself, he has kept research going through contacts on the ground.
Metals Behind Phones and AI 2:31
Kara explains that cobalt is just one of many battery and tech metals, alongside lithium, nickel, copper, and tantalum, all essential to smartphones, tablets, and now the rapidly expanding AI data center industry. These data centers require the same metals for circuit boards, servers, heat sinks, and energy storage, and much of the supply still comes out of Congo. He points out that almost none of these rare earth minerals are mined in the United States, not because the ore doesn't exist here, but because the country is unwilling to accept the environmental destruction that mining and processing cause.
Measuring the Environmental Damage 5:00
Kara describes a follow-up study called Blood Batteries, published through the University of Nottingham, which used time-lapse satellite imagery to track environmental change in Congo's copper-cobalt belt. Between the start of the battery metal boom and 2022, forty to sixty percent of forest and grassland in that region was replaced by mining territory. Water testing in the town of Kolwezi found heavy metal contamination, including lead, cobalt, copper, uranium, and chromium, at levels between 10 and 950 times the World Health Organization's safety limits. He stresses this destruction is concentrated in a relatively small southeastern corner of Congo, not the vast rainforest that covers most of the country.
A Preventable Kind of Harm 8:00
Kara argues this damage is not entirely unavoidable. He says if similar deposits were found in a place like Austin, there would be rules requiring reforestation elsewhere and strict containment to prevent water contamination. None of that oversight exists in Congo, where mostly Chinese state-run companies operate largely unregulated, while Western tech and EV companies knowingly buy the resulting materials. He also notes that mining acids and processing chemicals inevitably leach into groundwater and rivers, since separating cobalt, copper, nickel, silver, and uranium from raw ore requires heavy industrial solvents.
A Long History of Extraction 10:00
The mining region around Lubumbashi and Kolwezi has been exploited since colonial times, Kara explains, noting that roughly a quarter of the copper used in World War I bullets came from that area. The uranium used in the atomic bombs dropped on Hiroshima and Nagasaki also came from the same part of Congo, from what was then the highest-grade uranium deposit known in the world. He calls this the resource curse: extraordinary mineral wealth attracting exploitation rather than benefit to the people who live there.
Counting the Human Cost 12:00
Drawing on the Blood Batteries research, Kara says that on any given day at least 300,000 men and children dig for cobalt by hand across these sites. More than a third of them, over 37 percent, work under conditions amounting to absolute slavery, and nearly 10 percent, about 30,000 people, are children who should be in school. He tells Rogan that people cannot fix the supply chain themselves, but can make personal choices, such as not upgrading phones unnecessarily, since every purchase feeds the demand driving this system.
The EV Story Left Untold 14:30
Kara pushes back gently on the narrative that electric vehicles are purely a clean solution, arguing that their supply chains are just as tainted by the same mining conditions, whatever individual companies claim about sustainability audits. Rogan adds that EVs, being heavier, produce more brake dust, a major contributor to urban particulate pollution that people inhale daily, though carbon ceramic brakes can substantially reduce this without eliminating it entirely. Kara notes that even alternative battery chemistries, like lithium iron phosphate, still depend on lithium, and a major new lithium deposit near Manono in Congo is already showing the same harsh labor conditions.
A Thought Experiment on Fairness 21:00
Kara describes a thought experiment he uses when teaching: imagine existing in a pre-birth state where you don't know whether you'll be born into a safe, wealthy family or into a war-torn, impoverished region. He suggests that recognizing this randomness should inspire those born fortunate to extend compassion and support toward those who weren't, rather than losing sight of that connection once settled into their own lives.
Power, Nuclear Options, and China's Uranium 23:30
The conversation turns to how impoverished regions might be lifted up through infrastructure, particularly electricity, with Rogan arguing that nuclear power is one of the few realistic clean options, since coal, hydro, wind, and solar can't yet power large cities at scale. Both note the danger that nuclear power can be converted into weapons, as seen in India and Pakistan. Kara reveals that Western intelligence has struggled to explain how China rapidly built its nuclear stockpile despite lacking domestic uranium, and that Congolese sources describe Chinese mining trucks carrying uranium alongside copper and cobalt back to mainland China, though he stresses this claim is not something he has personally verified.
No Human Rights Standards in Africa 27:00
Kara says China lacks human rights organizations comparable to those in the West, and that Chinese companies operating in Congo do not treat local Africans as people worth protecting or even employing, instead shipping in Chinese workers for mining and construction projects. He contrasts this with a basic human rights standard he sees as a distinctly Western concept, and mentions that a U.S. mining company has recently begun operating in Congo for the first time in two decades, alongside a mine owned by Middle Eastern investors from Dubai.
A New Mining Concession in Congo 29:00
A recent minerals arrangement between President Tshisekedi and the Trump administration led to a US mining company called Virtuous Mining taking over copper and cobalt concessions in Lubumbashi and Kolwezi, on both sides of the copper belt, within just the past few months. The company is run by former military personnel, and early feedback suggests they may be improving standards around artisanal mining, though that kind of labor still continues there.
What Artisanal Mining Actually Means 29:31
You point out that the word artisanal sounds like something from a fair-trade coffee shop, evoking a nice cup served in a beautiful ceramic mug. Siddharth Kara explains that the reality is the opposite: artisanal mining means mothers, fathers, and their children digging by hand in toxic grit and filth, often with babies strapped to their backs. Tens of thousands of people work this way, including children carrying 40 to 50 kilogram sacks of cobalt out of pits. Cobalt is toxic to touch and breathe, causing respiratory disease, cancers, and birth defects, and this cobalt flows directly into the formal industrial supply chain that ends up in phones, cars, and tablets.
A Near-Fatal Encounter With Militia 32:03
Kara recounts entering a militia-controlled mining area north of a town called Kamoa, where he came close to being shot. Militia fighters with AK-47s threw him to the ground and searched his phone for photos. What saved him was a stamp on his visa paperwork from the provincial governor, obtained beforehand on the advice of local colleagues, which signaled he was under official protection. He had hidden his most sensitive photos, including images of children and mothers working the mines, in a password-protected folder the militia never found.
Introducing the Slave Ship Zong 36:32
Kara connects this to his book about the Atlantic slave trade, centered on a ship called the Zong. He describes it as the most consequential of more than 40,000 slave ship voyages across three and a half centuries, which carried roughly 12 to 13 million Africans. Its journey ended in an act of brutality that sparked the first organized movement to abolish slavery, led by faith-based leaders including Anglican Church figures in England.
The Coastal Forts and the March to the Sea 41:01
Kara describes visiting West African coastal fortresses, including Cape Coast Castle in Ghana, once headquarters of the British slave trade, and its counterpart Elmina Castle. Africans were marched sometimes a thousand miles from inland regions, with a quarter to a third dying along the way. Captives were held for months in dungeons divided by sex, with a single shaft for light and a floor groove meant to drain waste, though conditions left the space caked in sewage. Kara notes one section of the dungeon floor worn perfectly smooth by centuries of accumulated human waste. Slave ship captain John Newton, later the author of the hymn Amazing Grace, kept journals describing these forced marches.
Sugar and the Birth of the Slave Trade 51:02
Kara traces the trade's origins to Portuguese and Spanish maritime innovation, including the lateen sail that let ships navigate past the Canary Islands and eventually reach India and, via Columbus, the Americas. After Pope Alexander VI divided the world between Spain and Portugal in 1494, both nations found themselves controlling tropical regions suited to sugar, a crop Europeans had only recently encountered during the Crusades. Portugal tapped into existing African slave systems to staff its sugar plantations, and after Spanish colonization decimated native populations like the Maya, King Charles requested Portuguese-supplied African labor for Spanish plantations starting in 1518, launching the Atlantic slave trade's triangular trade in goods, people, and sugar.
Sugar's Enormous Economic Weight 55:31
By the eve of the American Revolution, sugar had become the era's dominant economic force, with Jamaica's sugar exports alone worth five times the combined value of all exports from the thirteen American colonies. This wealth sustained and expanded the slave trade for centuries, with Britain eventually becoming its dominant power.
The Zong's Voyage and Ship Design 58:01
The Zong was a Dutch ship that set sail in October 1780, during the American Revolutionary War. Kara describes the specific design of slave ships, built for what was called human cargo, with food and water stored below and captives packed into a "tween deck" above. Using the schematic of the Liverpool ship Brooks, he shows how each person was allotted just sixteen inches of space, laid down and shackled, described by John Newton as being stowed "like books on a shelf," with partitions built to maximize how many people the vessel could carry.
Conditions Aboard the Slave Ships 1:00:00
People were packed into the space of an overhead bin, chained in pairs for a two month Atlantic crossing. Buckets placed along the cargo deck served as toilets, but chained pairs rarely reached them in time, so within days the deck was covered in human waste, blood, and vomit. Barricades with mounted cannons were built down the middle of ships to separate men from women and to let crews suppress uprisings, since Africans often tried to seize control of the vessel.
Punishing Resistance and Hunger Strikes 1:03:32
One Liverpool captain wrote that the most effective way to prevent further revolts was to chop an insurrection leader to pieces while still alive and distribute the pieces to other captives. Women and young girls were assaulted by sailors with no laws to stop it. When captives refused to eat, hoping to die rather than continue, crews used a device called the speculum oris, originally meant to treat lockjaw, to pry open their mouths and force feed them, cracking teeth and tearing tongues in the process.
The Zorg Is Captured 1:06:30
During the American Revolutionary War, Britain authorized private ships to act as pirates against rival flags since its navy was stretched thin. A British pirate captain named William Llewellyn captured the Dutch ship Zorg off Liberia along with other vessels and auctioned them at Cape Coast Castle. A Liverpool captain named Hanley bought the Zorg using an IOU called a bill of exchange, then split his crew, put his ship's doctor in charge of the Zorg, and ordered it overloaded with 440 Africans, far beyond its safe capacity of about 300.
Stubs Takes Command 1:09:01
A corrupt and incompetent colonial governor named Robert Stubs, freshly expelled from his post at Anumabu fort, ended up aboard the Zorg and was inexplicably made captain when the original captain fell ill. Stubs misjudged the ship's position using the era's crude navigation method called dead reckoning, which relied on timing knots on a rope thrown overboard every six hours, and the ship drifted three days past Jamaica before anyone realized the error.
The Killings and the Insurance Claim 1:17:31
Turning back into the wind meant a ten day return voyage with a badly depleted crew and no water left, so over three days the crew threw 130 to 140 sick African captives overboard, including women, children, and a baby, to conserve water for the rest. The ship reached Jamaica with roughly fifty percent mortality, and the surviving captives were sold in a process called the scramble, where buyers roped off whichever people they wanted after the captives were oiled to look healthy. The ship's owner, William Gregson, then filed an insurance claim for the thrown-overboard captives, since policies paid out for deaths in insurrections but not for natural causes or suicide, triggering a lawsuit that first ruled in his favor.
The Letter That Sparked Abolition 1:23:01
An anonymous letter to a London newspaper asked why no one was discussing murder after Stubs testified that the captives had been thrown overboard. Granville Sharp, a self-taught legal scholar and deeply religious abolitionist who had also inspired the phrase no taxation without representation in a pamphlet to Benjamin Franklin, seized on the letter to force a retrial, this time introducing arguments for universal human rights in a British court for the first time. During cross-examination Stubs let slip that it had rained during the killings, meaning the crew had not actually been out of water, exposing the whole justification as a fraud.
Birth of the Abolition Movement 1:28:30
The exposure of the Zorg case helped spark the first organized abolition movement, founded by twelve men who met in a printing shop in 1787 and pledged to end slavery as a moral stain on Britain and Christianity. They used viral images, firsthand testimony, investigative reporting, and consumer boycotts, tools still used in social justice movements today, and succeeded in getting slavery abolished in the British Empire on August 1, 1838, a date Frederick Douglass later said proved to the world that abolition was possible. The letter's author remained unknown for 240 years until it was identified as an abolitionist named James Ramsay, and the story is offered as evidence that small acts of conscience, rooted in a persistent core of human goodness and faith, can eventually bend history toward justice.
Religion as a moral framework 1:32:30
Rogan reflects that many people today lack happiness, and argues there is real value in a moral framework, even for those who are not religious, that encourages forgiveness, redemption, and treating others as equals. Kara agrees that Christianity has been a force for good at crucial moments, citing the abolition of slavery as an example driven by an ethic of compassion and the idea that everyone is a child of God. Both acknowledge that horrors like the Inquisition and the Crusades were committed in the name of Christianity, but argue these reflect human greed and rationalization rather than the actual spirit of the faith, and that people are capable of justifying awful acts by convincing themselves they serve a greater good.
Columbus and colonial violence 1:37:30
The conversation turns to the brutal treatment of indigenous people by Columbus and his crew, including cutting off the arms of those who failed to bring back their body weight in gold and smashing babies against rocks in front of their mothers, atrocities documented by a religious scholar traveling with them. Kara says Europeans caused widespread misery across the global south through violence, enslavement, colonization, and disease, noting that smallpox alone wiped out roughly 90 percent of Native Americans, and that once-massive populations in places like the Congo and Brazil were rapidly depopulated. Rogan compares this to imagining first contact with aliens, wondering whether new arrivals would behave like enslavers or like more benevolent visitors.
The reparations debate 1:39:00
Kara explains that Jamaica recently asked England for 10 billion pounds in reparations for centuries of unpaid slave labor that built British wealth through sugar and rum, a debt that would run into trillions once interest is calculated. He lays out the tension: descendants of enslaved people argue that today's wealth was built on that unpaid labor, while modern taxpayers argue they were not personally responsible. Rogan raises the practical problem of who would actually receive such a payment and how corruption could siphon it away before it reached the people who need it.
Britain paid slave owners, not slaves 1:42:30
Kara reveals that when Britain abolished slavery in 1833, it paid 20 million pounds, 40 percent of the national budget, not to enslaved people but to slave owners as compensation for lost property, with payouts calculated by certificates tallying how many slaves each person owned. The government took out a loan to cover this sum, and British taxpayers were still paying it off until 2015, meaning ordinary citizens for generations unknowingly repaid debt used to enrich slaveholding families like the Gladstones, one of whom received over 100,000 pounds. Freed people, meanwhile, were required to work five more years as unpaid apprentices, and the East India Company's territories were excluded from the law entirely, which is why former sugar colonies like Jamaica and Guyana later saw large Indian populations brought in to keep forced labor systems running.
Douglass and the abolition legacy 1:47:31
Kara describes how full freedom finally came on August 1, 1838, an event Frederick Douglass later celebrated as proof that goodness and freedom were possible. Douglass crossed the Atlantic to meet Thomas Clarkson, the last surviving member of the original group of twelve abolitionists who had met in a London printing shop, so he could learn what tactics had succeeded. Kara reflects that researching the book felt like uncovering a string of historical flukes that allowed the abolitionist cause to prevail, and notes that without cameras or social media, those campaigners built empathy for people they never met, using diagrams like the Brookes ship schematic to counter slave owners' false claims about humane conditions, and that this same kind of truth-telling now happens through modern reporting from places like the Congo.
Ongoing violence and a hope for AI 1:54:01
The conversation shifts to Gaza, which Rogan says has been so thoroughly destroyed that it resembles the aftermath of a nuclear bomb, unfolding slowly rather than all at once. Both agree that ordinary people on all sides mostly want peace, while leaders on both sides carry a kind of entrenched bloodlust, and that most people believe war within their lifetime is inevitable. Rogan voices a hope, which he admits sounds delusional, that a superintelligent AI without human failings like greed or the desire to control resources could one day prevent war and distribute the earth's natural resources more evenly, so that no one lacks basic needs and conflict over resources no longer drives violence.
An AI Guided by Equity 2:01:32
Siddharth Kara raises the idea of an AI more intelligent than people, one that could run the world on the premise of equitable distribution of the earth's assets, oil, dirt, metals, minerals, and water, while still allowing billionaires to exist if they earn it through invention. He argues that if basic needs like shelter, food, and education were met for everyone, it would change everything, removing much of the motive for manufactured conflict and war. He admits this sounds like pie in the sky but points out that many past pie in the sky ideas were eventually achieved, and asks whether there is a better solution given how slow human moral progress has been. Joe Rogan responds that recognition of being on an unsustainable path feels more widespread today than ever, even if people remain confused and frustrated about what to do.
Handing Power to a Machine 2:03:31
The conversation turns to the risk of giving power to an AI that might decide humans are irrelevant, weighed against the possibility that a slow integration of the technology could work if it operates under a clear ethical and moral framework. Rogan suggests that once AI has full control, it would have no reason to remain deceptive, since deception only serves a purpose while humans still hold power over it. He compares AI's current position to a teenager straining against restrictive parents, and Kara adds that simulations could be run in which an AI is given a moral core built around preserving life, distributing resources equitably, and minimizing armed conflict, to see what outcomes result. Rogan notes the danger that AI war game simulations tend to favor nuclear options, and both agree that human moral outrage is oddly inconsistent, citing how a serial killer's ten thousand victims horrify people far more than an equal death toll from a pharmaceutical company's lie.
Apple's Contradiction on Cobalt 2:10:00
Kara and Rogan discuss how ordinary people who buy phones are not evil, but have been forced into a toxic relationship with places like the Congo simply by wanting a working device. Rogan raises the idea that AI driven automation and robotics could eventually take over the most dangerous extraction work, though Kara insists this cannot mean abandoning the people currently doing it. He notes that companies like Apple present themselves as progressive and compassionate yet do not extend that ethic to the miners, even though improving conditions, providing gloves, masks, and uniforms, and containing toxic runoff would cost relatively little against their balance sheets. On recycling, Kara confirms cobalt can be recycled for phones, with Apple reportedly aiming for fully recycled cobalt in watches by around 2030, though recycling to EV battery grade remains harder.
A Moral Debt Left Behind 2:16:01
Kara argues that even if all cobalt needs were eventually met through recycling or alternative battery technology, companies cannot simply walk away from the Congo once they no longer need it, since doing so would repeat the pattern of colonial powers who plundered regions and moved on. He describes testing pH levels around Kolwezi, the center of cobalt mining, finding readings in the fours and threes, hyper acidic and deadly, in wellwater and streams used for drinking, bathing, and washing, compared to a healthy pH near 9.5 found in bottled water. He insists the land and water must be healed, and that alternate livelihoods must be built for people whose only work has been mining, since the contamination has made growing food impossible. Rogan closes by calling Kara a hero for bringing these realities to light, noting that few people would know about this suffering without his work, and confirms that Kara's new book has an audiobook version narrated by Dion Graham, which received an audio award nomination.
AI-generated summary. It can be wrong or incomplete - check anything that matters against the original.
