3Blue1Brown: the videos Hacker News recommends
Not the channel's most viewed videos: the ones HN commenters kept linking with real commentary. The top pick, "Vectors | Chapter 1, Essence of linear algebra", hN's go-to recommendation for learning linear algebra intuition, repeatedly credited with making concepts click and complementing textbooks.
- course recommended in 18 different months by 17 HN users, 2018–2026HN's go-to recommendation for learning linear algebra intuition, repeatedly credited with making concepts click and complementing textbooks.
- explainer recommended in 15 different months by 16 HN users, 2018–2025HN's default recommendation for understanding the Fourier transform intuitively; many say it was the explanation that made it click.
- explainer recommended in 14 different months by 16 HN users, 2017–2025HN treats it as the standard first stop for learning neural networks, praised for making the math intuitive.
- explainer recommended in 11 different months by 15 HN users, 2017–2024The go-to recommended video for newcomers wanting a clear, visual explanation of how Bitcoin and blockchains work.
- explainer recommended in 10 different months by 13 HN users, 2024–2026HN treats it as the go-to visual introduction to transformers, and many say it finally made attention and embeddings click.
- course recommended in 9 different months by 10 HN users, 2017–2025A staple recommendation for anyone learning math, praised for visual intuition that makes memorized formulas make sense.
- course recommended in 7 different months by 11 HN users, 2016–2018HN repeatedly recommends the series as the best intuition-first, visual introduction to linear algebra and a benchmark for clear math explanation.
- explainer recommended in 7 different months by 8 HN users, 2017–2025HN fans list it among their favorite 3Blue1Brown videos for showing how mathematical problem solving actually unfolds.
- explainer recommended in 6 different months by 6 HN users, 2019–2024HN repeatedly points people to it as the clearest visual intuition for determinants, often saying it finally made the concept click.
- explainer recommended in 7 different months by 7 HN users, 2017–2024It is the standard pointer for a clear, visual explanation of what fractals are, and for correcting the idea that fractal means self-similar.
- explainer recommended in 6 different months by 6 HN users, 2017–2025HN recommends it as the go-to intuitive visualization of high-dimensional geometry, relevant to machine learning, optimization and sphere packing.
- explainer recommended in 5 different months by 6 HN users, 2016–2025HN repeatedly names it the best, most intuitive explanation of eigenvalues, and a gateway to the whole linear algebra series.
- explainer recommended in 6 different months by 7 HN users, 2019–2025HN recommends it as the clearest visual explanation that uncertainty is intrinsic to waves, separate from measurement disturbance.
- explainer recommended in 6 different months by 6 HN users, 2018–2023HN commenters recommend it as the best visual explanation of quaternions and a good way to visualize higher dimensions.
- explainer recommended in 5 different months by 6 HN users, 2016–2024Recommended as a favorite Grant Sanderson video and a visual introduction to p-adic numbers and sums like 1+2+4+...
- explainer recommended in 5 different months by 8 HN users, 2020–2023HN pointed to it during 2020 as a digestible, well-made illustration of epidemic dynamics and interventions.
- explainer recommended in 5 different months by 6 HN users, 2017–2023HN praises its visualizations, its handling of the -1/12 result, and its ending, and often prefers it to other explanations of the topic.
- explainer recommended in 4 different months by 4 HN users, 2017–2020Fans name it as a favorite 3Blue1Brown video, praising its detective-story treatment of the inscribed square and rectangle problem.
- explainer recommended in 5 different months by 7 HN users, 2019–2024Frequently recommended as the clearest explanation of prime spirals and the Ulam spiral.
- explainer recommended in 5 different months by 5 HN users, 2023–2026HN considers it among the clearest accessible explanations of what refractive index actually is and how light moves through transparent matter.
- explainer recommended in 4 different months by 5 HN users, 2024–2026HN treats it as the go-to visual explanation of attention, recommended to people who find text-based transformer explainers hard to follow.
- explainer recommended in 4 different months by 4 HN users, 2020–2025Recommended as the visual explanation that makes Fourier series and transforms click, even for laypeople.
- explainer recommended in 4 different months by 5 HN users, 2016–2023HN points to it in notation debates as a clean visual demonstration that exponents, logs and roots are three views of one relationship.
- explainer recommended in 4 different months by 4 HN users, 2017–2024Recommended as the best visual introduction to Hilbert curves, which come up in indexing, image layout and dimensionality mapping.
- explainer recommended in 4 different months by 4 HN users, 2020–2023HN recommends it as an invaluable, intuitive explanation of Hamming codes that pairs well with hardware-oriented treatments.
- explainer recommended in 4 different months by 4 HN users, 2020–2025HN's go-to link whenever Bayesian reasoning, base rates or imperfect tests come up.
- explainer recommended in 4 different months by 4 HN users, 2020–2021HN commenters point to it as a quick, visual way to understand Euler's identity.
- explainer recommended in 3 different months by 4 HN users, 2017–2024Recommended as the most accessible introduction to backprop for people who struggle with the pure math.
- explainer recommended in 3 different months by 3 HN users, 2017–2019Praised as a beautiful, understandable proof and a favorite among 3Blue1Brown videos.
- explainer recommended in 3 different months by 3 HN users, 2024–2025HN commenters call it the best explanation of how holograms work, and one says it transformed their understanding.
- explainer recommended in 3 different months by 4 HN users, 2017–2024HN recommends the series as a very accessible way to understand the math behind machine learning and LLMs.
- explainer recommended in 3 different months by 2 HN users, 2020–2023HN uses it as the go-to illustration of just how large 2^256 is.
- explainer recommended in 3 different months by 3 HN users, 2017–2024Recommended as a mind-opening, visual explanation of why Euler's formula is true.
- demo recommended in 3 different months by 3 HN users, 2024–2026Recommended as a rare detailed look at how 3b1b videos are made, including live debugging of his rendering engine.
- explainer recommended in 2 different months by 2 HN users, 2025–2026HN recommends it as an excellent explanation of how we know cosmic distances.
- explainer recommended in 2 different months by 2 HN users, 2022–2024HN people recommend it as the most intuitive introduction to Bayes' theorem and cite it in base-rate arguments.
- explainer recommended in 2 different months by 3 HN users, 2017–2024Recommended as an accessible, visual way to understand backpropagation and neural networks.
- explainer recommended in 2 different months by 2 HN users, 2022–2024HN recommends it as the go-to explanation of optimal Wordle openers like CRANE and a friendly introduction to information theory, also relevant to Mastermind.
- explainer recommended in 1 different month by 10 HN users, 2020During the early COVID-19 period, HN commenters linked it as the clearest quick explanation of what exponential growth means for an epidemic.
- explainer recommended in 1 different month by 2 HN users, 2020–2022Recommended as an approachable way to understand the quantum nature of light and basic quantum math without heavy machinery.
- lecture recommended in 1 different month by 1 HN user, 2020–2023HN recommends it as the explanation that makes complex exponentials click, especially for understanding the Fourier transform.
- explainer recommended in 1 different month by 1 HN user, 2021–2023Mentioned as a favorite 3Blue1Brown video and a related watch in threads about deep mathematical structure.
- explainer recommended in 1 different month by 1 HN user, 2025–2026HN uses it as a clear explainer for diffusion mechanics, such as negative prompts and faster sampling, and for joint text-image encoders.
Questions
Which 3Blue1Brown video does Hacker News recommend most?
Vectors | Chapter 1, Essence of linear algebra: recommended in 18 different months by 17 HN users between 2018 and 2026.
Is this every 3Blue1Brown video?
No. Only videos that at least three different HN users linked, in at least three different months, with at least a sentence of their own commentary. That filter is what makes the list useful.