Kurzgesagt - In a Nutshell: 2021
Season 9 Lore Primer
Key plot threads, lore context, and character stakes you need to remember before diving into this season.
- Directly follows the overarching narrative developments of Kurzgesagt - In a Nutshell Season 8.
- Faction dynamics and core character alliances shift under escalating external stakes.
- Crucial mysteries introduced previously reach key turning points and narrative reckonings.
- Sets up serialized story arcs that build directly toward the climactic season finale.
Episode Guide
Season 9 Progress Shield
How Many People Did Nuclear Energy Kill? Nuclear Death Toll
Feb 2, 2021 · 11 min
Nuclear energy creates an uneasy feeling of danger for many people: ancient and dangerous minerals are concentrated to awaken seemingly unnatural powers, creating toxic elements th
What if the World turned to Gold? - The Gold Apocalypse
Mar 9, 2021 · 9 min
Let us explore the scientific mystery of what would happen to you, if Earth suddenly turned into gold! The “Midaspocalypse”, based on the ancient tale of King Midas who was cursed
Do we Need Nuclear Energy to Stop Climate Change?
Apr 13, 2021 · 11 min
Do we need nuclear energy to stop climate change? More and more voices from science, environmental activists and the press have been saying so in recent years – but this comes as a
The Ultimate Guide to Black Holes
Apr 27, 2021 · 12 min
What would happen if we were to detonate a very very powerful nuclear weapon on the moon? Would the explosion knock its orbit towards earth, causing tidal waves and misery? Could
TRUE Limits Of Humanity – The Final Border We Will Never Cross
May 11, 2021 · 12 min
Is there a border we will never cross? Are there places we will never reach, no matter how hard we try? It turns out, there are. Even with sci-fi technology, we are trapped in a li
What Are You Doing With Your Life? The Tail End
May 25, 2021 · 10 min
Wrapping your mind around your life is pretty hard, because you are up to your neck in it. It's like trying to understand the ocean while learning how to swim. On most days you are
The Day the Dinosaurs Died – Minute by Minute
Jun 15, 2021 · 12 min
66 million years ago, maybe on a Tuesday afternoon, life was the same as it had been the day before or a thousand years before or pretty much a million years before. Things were go
How To Terraform Venus (Quickly)
Jul 6, 2021 · 13 min
Leaving earth to find new homes in space is an old dream of humanity and will sooner or later be necessary for our survival. The planet that gets the most attention is Mars, a smal
The Largest Black Hole in the Universe - Size Comparison
Aug 3, 2021 · 14 min
The largest things in the universe are black holes. In contrast to things like planets or stars they have no physical size limit, and can literally grow endlessly. Although in real
How The Immune System ACTUALLY Works – IMMUNE
Aug 10, 2021 · 11 min
The human immune system is the most complex biological system we know, after the human brain, and yet, most of us never learn how it works. Or what it is. Your immune System consis
This Virus Shouldn't Exist (But it Does)
Aug 31, 2021 · 11 min
Hidden in the microverse all around you, there is a merciless war being fought by the true rulers of this planet, microorganisms. Amoebae, protists, bacteria, archaea and fungi com
Can YOU Fix Climate Change?
Sep 22, 2021 · 16 min
Never before in human history have we been richer, more advanced or powerful. And yet we feel overwhelmed in the face of rapid climate change. It seems simple on the surface. Green
What Dinosaurs ACTUALLY Looked Like?
Oct 12, 2021 · 12 min
The past is a vast and mysterious land that begins at the big bang and ends in the present, expanding with each passing moment. It is the home of everything that came before, the k
You Are Immune Against Every Disease
Nov 2, 2021 · 12 min
You are not a person, you are a planet, made of roughly 40 trillion cells. There is so much of you, that if your cells were human-sized, you would be as big as 20 Mount Everests.
Is Meat Really that Bad?
Nov 30, 2021 · 12 min
Food is arguably the best thing about being alive. No other bodily pleasure is enjoyed multiple times every day and never gets old. It is an expression of culture, our parents' lov
...And We'll Do it Again
Dec 7, 2021 · 11 min
Kurzgesagt is lying to you, in every video, even in this one. Because our videos distill very complex subjects into flashy ten minute videos and unfortunately, reality is, well, co
Why We Should NOT Look For Aliens - The Dark Forest
Dec 14, 2021 · 12 min
The Universe is incredibly big and seems full of potential for life, with billions of habitable planets. If an advanced civilization had the technology to travel between the stars,