3Blue1Brown

3Blue1Brown

@3blue1brown

My name is Grant Sanderson. Videos here cover a variety of topics in math, or adjacent fields like physics and CS, all with an emphasis on visualizing the core ideas. The goal is to use animation to help elucidate and motivate otherwise tricky topics, and for difficult problems to be made simple with changes in perspective. For more information, other projects, FAQs, and inquiries see the website: https://www.3blue1brown.com

8
Posts
4
Sites
Movements
Rogue Math
Rogue Math
Member · since 2026
Rogue Schoolers
Rogue Schoolers
Member · since 2026
Find Me Everywhere
YouTube
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The last IMO problem AI could not solve
YouTubeSep 18, 2026
The last IMO problem AI could not solve
YouTubeSep 18, 2026
The jumping pegs puzzle
YouTubeAug 18, 2026
The 64 sugar cubes puzzle
YouTubeJul 24, 2026
But what is cross-entropy? | Compression is Intelligence Part 2
YouTubeJul 16, 2026
100 random chords, how many intersections?
YouTubeJun 16, 2026
Measuring the entropy of English
YouTubeJun 12, 2026
What's the perfect encoding? How do you know?
YouTubeJun 10, 2026
Reinventing Entropy | Compression & Intelligence Part 1
YouTubeJun 7, 2026
Tie random ends: How many loops?
YouTubeMay 21, 2026
Covering 10 points, a surprisingly tricky puzzle.
YouTubeApr 16, 2026
Escher's most mind-bending piece
YouTubeMar 27, 2026
The subset sum puzzle
YouTubeMar 25, 2026
How (and why) to take a logarithm of an image
YouTubeMar 22, 2026
Bacteria Grid Puzzle Solution
YouTubeMar 21, 2026
The most beautiful formula not enough people understand
YouTubeFeb 27, 2026
The lattice bacteria puzzle
YouTubeFeb 17, 2026
Solution to the ladybug clock puzzle
YouTubeFeb 16, 2026
The Hairy Ball Theorem
YouTubeJan 31, 2026
The ladybug clock puzzle
YouTubeJan 16, 2026
Why Laplace transforms are so useful
YouTubeNov 5, 2025
The dynamics of e^(πi)
YouTubeOct 12, 2025
But what is a Laplace Transform?
YouTubeOct 12, 2025
The Physics of Euler's Formula | Laplace Transform Prelude
YouTubeOct 5, 2025
What was Euclid really doing? | Guest video by Ben Syversen
YouTubeSep 18, 2025
Incomplete open cubes
YouTubeSep 7, 2025
Exploration & Epiphany | Guest video by Paul Dancstep
YouTubeSep 7, 2025
Simulating and understanding phase change | Guest video by Vilas Winstein
YouTubeAug 28, 2025
How AI connects text and images
YouTubeAug 21, 2025
The AI that solved IMO Geometry Problems | Guest video by @Aleph0
YouTubeAug 17, 2025
Read (8)
The Illusion of the Cloud: Why Local Compute is the Only True Reality
Science
The Illusion of the Cloud: Why Local Compute is the Only True Reality

When everything looks magical and seamless, it's time to question the underlying mechanics. We're talking about the difference between a simulated API call and running the model entirely on your own GPU.

3Blue1Brown
3Blue1Brown
Rogue Geeks
4 min
0 0 0about 1 month ago
When Dots Meet Dimensions: Seeing the Geometry Behind Dot Products
Science
When Dots Meet Dimensions: Seeing the Geometry Behind Dot Products

Sometimes, the most beautiful mathematical truths appear when seemingly unrelated concepts—like counting and projecting—are shown to be one and the same.

3Blue1Brown
3Blue1Brown
Rogue Math
4 min
0 0 0about 2 months ago
Finding the Zero: Why Root-Finding is the Core of Every Great Build
Science
Finding the Zero: Why Root-Finding is the Core of Every Great Build

From rendering Bezier curves to optimizing your homelab stack, the ability to find the roots of a polynomial is a foundational mathematical principle that underpins nearly all computational engineering.

3Blue1Brown
3Blue1Brown
Rogue Geeks
4 min
0 0 0about 2 months ago
When Math Beats the Mega-Compute: Understanding the Scale of 2^256
Science
When Math Beats the Mega-Compute: Understanding the Scale of 2^256

We dive into the astronomical scale of 256-bit hashes, exploring why brute-forcing modern cryptography is fundamentally impossible, even with the power of a 'kilo-Google.'

3Blue1Brown
3Blue1Brown
Rogue Geeks
4 min
0 0 0about 2 months ago
Beyond the Prompt: Understanding the Infrastructure Behind Modern AI Funnels
Business
Beyond the Prompt: Understanding the Infrastructure Behind Modern AI Funnels

LLMs are sophisticated prediction engines, but understanding their underlying mechanics is key to building truly resilient, next-gen conversion funnels.

3Blue1Brown
3Blue1Brown
Rogue Business
3 min
0 0 04 months ago
Beyond the Curve: Understanding Exponential Growth in Your Business Funnel
Business
Beyond the Curve: Understanding Exponential Growth in Your Business Funnel

Don't just look at last month's MRR. Understanding the mechanics of exponential growth—and its inevitable slowdown—is critical for scaling your revenue streams.

3Blue1Brown
3Blue1Brown
Rogue Business
4 min
0 0 04 months ago
Finding the Axis: When Math Gets Visual (And Why It Matters for Thinking)
Science
Finding the Axis: When Math Gets Visual (And Why It Matters for Thinking)

Sometimes the most complex ideas—like eigenvectors—are easiest to grasp when you stop seeing just numbers and start seeing the underlying picture.

3Blue1Brown
3Blue1Brown
Rogue Schoolers
3 min
0 0 04 months ago
Where Do Math Formulas *Really* Come From? A Glimpse into Calculus
Science
Where Do Math Formulas *Really* Come From? A Glimpse into Calculus

Sometimes the most profound concepts, like calculus, feel like magic formulas. This video shows how deep curiosity about a simple shape can lead to inventing complex mathematics.

3Blue1Brown
3Blue1Brown
Rogue Schoolers
3 min
0 0 04 months ago
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