Why We Lie to You (And Why That's OK)
Summary of the video “...And We'll Do it Again” by Kurzgesagt – In a Nutshell.
Kurzgesagt explains the philosophy behind science communication: using 'lies to children'—useful oversimplifications—to build understanding of complex topics. The channel balances accessibility with accuracy, acknowledging the tension between engaging storytelling and scientific nuance, and shares how they research and make editorial decisions to inspire curiosity rather than false certainty.
The Concept of Lies to Children
Oversimplification as a Teaching Tool
A 'lie to children' is a useful oversimplification that makes a complex concept graspable, building a foundation you can add nuance to later. For example, teaching that Earth is a perfect sphere orbiting the sun with evenly-spaced planets is false but creates a mental framework for understanding planetary motion before introducing real complexity.
Science Communication vs. Science Education
Science communication must use simplifications or it becomes full science education, which would require years of intense study to master each field. Society benefits when many people have a fact-based worldview, making accessible summaries of science essential rather than optional.
Why Simplification Is Necessary
Knowledge Grows Exponentially
A few centuries ago, one person could be expert-level knowledgeable in every field. Today, knowledge and data increase exponentially, making it impossible for any individual to grasp all details. We need summaries to navigate the modern world at all.
Our Brains Are Poorly Suited to Modern Complexity
Human brains evolved to protect ancestors from lions, not to navigate fast-moving modern systems created by science itself. We lack intuitive understanding of exponential growth, probability, and global systems, making fact-based frameworks essential for good decision-making.
How Simplifications Work in Practice
Metaphors and Stories Capture Nature While Staying Accessible
Quarks are depicted as colored spinning balls to help visualize their types and relationships, even though this image is fundamentally wrong. Molecules are taught as neat diagrams when they're actually buzzing, vibrating entities held together by 'charge'—a term we use because the math works and predictions succeed, not because we fully understand the underlying reality.
Simplifications Help Experts Too
Chemists use 'wrong' electron shell models to work out chemical bonds, and scientists across fields use simplified models as discussion bases. Simplifications aren't just for the public; they're useful thinking tools even for specialists.
The Dangers of Over-Simplification
Misleading Certainty Undermines Trust in Science
When a cancer study becomes 'a potential cure' or a food becomes 'the basis for a new diet,' simplifications give false definiteness to science. When cures don't materialize and diets fail, people lose confidence in all science communication and begin treating it as inherently misleading.
Engaging Stories Can Create False Confidence
If a simplification is too engaging or the story too compelling, it can distort true complexity and create an illusion of deep knowledge—a gut feeling that you understand better than you actually do. This false confidence can lead people to ignore actual experts in favor of their own superficial understanding, with serious consequences like vaccine hesitancy or climate denial.
Kurzgesagt's Approach to Responsible Simplification
Research Evolution: From Articles to Experts
Kurzgesagt's research process has evolved from reading articles to consulting peer-reviewed papers and multiple experts, collecting sources, and documenting simplifications with further reading guides. Despite this rigor, the process remains imperfect because experts sometimes disagree, primary sources are hard to find, and scientific results often have large error bars.
Editorial Decisions in a Ten-Minute Format
Creating ten-minute videos requires constant decisions about which details fit, what needs simplification, and what to cut. There is no single best answer, so the team weighs options every time, acknowledging that some experts will be unhappy with how their field is simplified.
Transparency and Continuous Improvement
Kurzgesagt participates in projects like TRESCA about science communication to learn and improve. The team is transparent about their goals and limitations, accepting that simplification is both necessary and imperfect.
The True Purpose of Kurzgesagt
Inspire Curiosity, Not False Certainty
The channel's primary goal is to spark curiosity and inspire viewers to read books, pay attention in school, and pursue deeper learning on their own—not because they have to, but because they want to understand how the world really works. The hope is that knowing simplifications occur won't diminish enjoyment of the videos.
Build Context for Life and the Future
Kurzgesagt aims to help people think about their own lives, the context they exist in today, the far future, and humanity's potential as a species. The universe is beautiful, and science is a way of seeing that beauty more clearly.
Notable quotes
Kurzgesagt is lying to you, in every video, even in this one. — Kurzgesagt narrator
Science is a process to work towards gaining knowledge and not an absolute truth generator. — Kurzgesagt narrator
The universe is beautiful and science is a way of seeing this beauty more clearly. — Kurzgesagt narrator