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Kurzgesagt - In a Nutshell: 2025

24 episodes · first aired Feb 4, 2025

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  1. 1 Alien Whales On Planet Nimbus - What Aliens Might Look Like Feb 4, 2025 · 16m Humans assume aliens look human. But why would they? Let's explore what life might actually look like in strange, distant worlds.
  2. 2 This Is NOT An Anti Meat Video Feb 25, 2025 · 15m Most of us love animals but also eat meat. Unfortunately, most animals we eat live in truly horrible conditions. We don’t torture them for better meat, just for cheaper meat. If we all…
  3. 3 Why Your Brain Blinds You For 2 Hours Every Day Mar 18, 2025 · 13m Reality is not real. Your world is a prediction. Every sight, sound, and touch you experience is the result of calculations your brain makes before reality even reaches you. It fills in…
  4. 4 SOUTH KOREA IS OVER Apr 2, 2025 · 15m South Korea is heading toward a demographic collapse unlike anything the world has seen before. With the lowest fertility rate ever recorded and a rapidly aging population, the country…
  5. 5 Your Time Machine Broke - At The Worst Time In History Apr 22, 2025 · 12m What happens when your time machine breaks and you end up stranded millions of years ago? You’ve landed in a world that’s nothing like today, facing deadly storms and unbearable heat…
  6. 6 We Finally Answered the MOST Important Question May 6, 2025 · 11m Can jellyfish power Tokyo? What would happen if it rained bananas for a day? We're taking two of your most absurd (and brilliant) questions and answer them with real science.
  7. 7 Why Does Fentanyl Feel So Good? May 20, 2025 · 15m Fentanyl is the deadliest illegal drug in US history by far. It’s often described as the ultimate high, but it’s actually an inferior, short-lived, and brutally addictive version of…
  8. 8 Why Is The US Dropping Billions Of Mutant Flies From The Sky? Jun 3, 2025 · 11m A war has been raging for decades in the jungles of Panama, as we fight one of the most terrifying parasites on Earth. It is so relentless that our best defense is to drop 100 million…
  9. 9 The Betrayal of Autoimmune Diseases Jul 1, 2025 · 11m What happens when the immune system meant to protect you becomes your worst enemy? This is the betrayal of autoimmune diseases like Type 1 diabetes, multiple sclerosis, celiac disease…
  10. 10 Let's Kill You a Billion Times to Make You Immortal Jul 29, 2025 · 13m No matter how likely your death is, there will always be a version of you that survives. At least according to one of the most bizarre interpretations of quantum mechanics, known as…
  11. 11 Alcohol is AMAZING Aug 12, 2025 · 15m Alcohol kills more people each year than wars, terrorism, homicides, and car accidents combined. It destroys bodies, relationships, and lives. Yet we toast with it at weddings, sip it at…
  12. 12 The Drug That Works TOO Well? Aug 19, 2025 · 12m From study sessions to dance floors, amphetamines can feel like a shortcut to superhuman focus and energy. Why do they work so well? What happens to your body once you take them? And what…
  13. 13 The Dumbest Animal Alive Sep 2, 2025 · 11m The ocean sunfish, or Mola, is one of the strangest animals alive. A massive, flat, derpy giant that eats jellyfish, drifts aimlessly, and carries parasites that even have smaller…
  14. 14 Can Humanity Stop A Planet-Killing Asteroid? Sep 16, 2025 · 12m Some killer asteroids were found only days before flyby. If they had struck Earth, the power of thousands of nuclear bombs would have flattened cities and killed millions. What if we…
  15. 15 Pregnancy is Insane Sep 23, 2025 · 13m Pregnancy is not gentle. Babies begin as invaders, growing a brand-new organ inside another human. For months, they sap energy, hack the immune system, and fight for survival. Out of this…
  16. 16 We Found a Loophole to Survive the End of the Universe Sep 30, 2025 · 13m Can we survive the heat death of the universe? One day, the last star will die, galaxies will dissolve, and black holes will evaporate. The universe becomes a cold, empty void where…
  17. 17 AI Slop Is Killing Our Channel Oct 7, 2025 · 12m AI-generated content is flooding the internet, from videos and music to news and books. On top of that, generative AI is making false information look more convincing than ever. We're…
  18. 18 You Need To Quit Weed. Oct 14, 2025 · 14m Weed is often seen as harmless, and in some cases, even helpful. But for many people, it can slowly become a serious problem, especially as they approach their twenties or thirties. Today…
  19. 19 You're More Stressed Than Ever - Let's Change That Nov 11, 2025 · 12m Stress is a biological superpower that helped your ancestors outrun predators, fight off enemies, and survive extreme situations. In the past, it helped us survive, but today, it’s quietly…
  20. 20 Let's Talk About Fat Nov 18, 2025 · 12m Fat is not just stored energy, it’s a complex organ that controls crucial hormones and communicates with your brain, immune system, and metabolism. It's one of the most powerful organs…
  21. 21 Trees Are So Weird Nov 25, 2025 · 13m Trees are among the most extreme and successful forms of life on Earth. They build their bodies from thin air, move water with pressures that would crush a human, and grow using a…
  22. 22 Astronomy Is In Crisis...And It's Incredibly Exciting Dec 2, 2025 · 12m Our best theory of the universe might be breaking apart! The new data we're receiving from space telescopes is creating more and more cracks in our current understanding of the universe…
  23. 23 All Of Human History In One Hour Dec 5, 2025 · 1h 4m Modern humans have been around for around 200,000 years. With Earth being 4.5 billion years old, this might seem like only a small speck of time, yet our story is long, rich, and full of…
  24. 24 Tattoo Removal Is Insane Dec 12, 2025 · 13m Getting a tattoo itself might be a dramatic event for your immune system, but things get even crazier when you try to remove them! From intense lasers, to shockwaves and exploding cells…