Tech talks
Best Tech Talks 2026, Ranked by Hacker News
First recommended on Hacker News in 2026, still worth watching: these 18 tech talks and lectures earned 105 recommendations across the years.
Type
TalkLectureDocumentaryExplainerDemoTutorialInterviewCommentaryComedyMusicPodcastsNews & reportingCoursesFeatures
Evergreen only
18 mo on HNVectors | Chapter 1, Essence of linear algebra
3Blue1Brown
Recommended 17× on HN · 2018–2026
11 mo on HNLecture 1 | Machine Learning (Stanford)
Stanford
Recommended 11× on HN · 2008–2020
9 mo on HNThe essence of calculus
3Blue1Brown
Recommended 10× on HN · 2017–2025
9 mo on HNRL Course by David Silver - Lecture 1: Introduction to Reinforcement Learning
Google DeepMind
Recommended 9× on HN · 2017–2026
7 mo on HNEssence of linear algebra preview
3Blue1Brown
Recommended 11× on HN · 2016–2018
7 mo on HNImaginary Numbers Are Real [Part 1: Introduction]
Welch Labs
Recommended 7× on HN · 2017–2025
6 mo on HNPythagoras' theorem (a) | Math History | NJ Wildberger
Insights into Mathematics
Recommended 6× on HN · 2014–2024
5 mo on HNLecture 01 - The Learning Problem
caltech
Recommended 5× on HN · 2016–2023
5 mo on HNSpecial Topics - The Kalman Filter (1 of 55) What is a Kalman Filter?
Michel van Biezen
Recommended 5× on HN · 2017–2025
4 mo on HNJavaScript: Understanding the Weird Parts - The First 3.5 Hours
Tony Alicea
Recommended 3× on HN · 2016–2019
4 mo on HNLec 1 | MIT 6.00 Introduction to Computer Science and Programming, Fall 2008
MIT OpenCourseWare
Recommended 4× on HN · 2010–2012
3 mo on HNGoogle Python Class Day 1 Part 1
Google for Developers
Recommended 3× on HN · 2011–2018
3 mo on HNShader Basics, Blending & Textures • Shaders for Game Devs [Part 1]
Freya Holmér
Recommended 3× on HN · 2021–2025
3 mo on HNThe Maths of General Relativity (1/8) - Spacetime and Worldlines
ScienceClic English
Recommended 3× on HN · 2021–2023
2 mo on HNPractical Deep Learning for Coders: Lesson 1
Jeremy Howard
Recommended 2× on HN · 2022–2023
2 mo on HN1.1 - Course outline
LaintalAy
Recommended 2× on HN · 2019–2023
2 mo on HNEpisode 1: A basic expression evaluator
Immo Landwerth (terrajobst)
Recommended 2× on HN · 2020–2026
1 mo on HNCS231n Winter 2016: Lecture1: Introduction and Historical Context
Andrej Karpathy
Recommended 2× on HN · 2016–2023