Handouts

Each course below is one handout with a chapter per lecture. Every chapter has the key slides, our notes on what they mean, and timestamps back to the video.

Course overview12 handouts · 11 h 0 min

Harvard Justice with Michael Sandel: episode guide and study notes

Episode-by-episode guide to Harvard's Justice with Michael Sandel: what each of the 12 episodes covers, which philosophers appear where, and our study handouts.

1. Justice (Sandel) Ep 1, The Moral Side of Murder — notes and timestamps · 55 min
2. Justice (Sandel) Ep 2, Price Tag on Life — notes and timestamps · 55 min
3. Justice (Sandel) Ep 3, Free to Choose — notes and timestamps · 55 min
4. Justice (Sandel) Ep 4, This Land Is My Land — notes and timestamps · 55 min
5. Justice (Sandel) Ep 5, Hired Guns — notes and timestamps · 55 min
6. Justice (Sandel) Ep 6, Mind Your Motive — notes and timestamps · 55 min
7. Justice (Sandel) Ep 7, A Lesson in Lying — notes and timestamps · 55 min
8. Justice (Sandel) Ep 8, What's a Fair Start? — notes and timestamps · 55 min
9. Justice (Sandel) Ep 9, Affirmative Action — notes and timestamps · 55 min
10. Justice (Sandel) Ep 10, The Good Citizen — notes and timestamps · 55 min
11. Justice (Sandel) Ep 11, Claims of Community — notes and timestamps · 55 min
12. Justice (Sandel) Ep 12, Same-Sex Marriage — notes and timestamps · 55 min

Course overview10 handouts · 3 h 38 min

3Blue1Brown Neural Networks course: all 10 videos, notes and order

Guide to 3Blue1Brown's Neural networks playlist: all 10 videos with lengths, what each teaches, a suggested reading order and our timestamped handouts.

1. 3Blue1Brown neural networks ch. 1: what is a neural network? — notes · 19 min
2. 3Blue1Brown neural networks ch. 2: gradient descent — notes · 21 min
3. 3Blue1Brown neural networks ch. 3: backpropagation intuition — notes · 13 min
4. 3Blue1Brown neural networks ch. 4: backpropagation calculus — notes · 10 min
5. 3Blue1Brown: Large Language Models explained briefly — notes · 8 min
6. 3Blue1Brown neural networks ch. 5: transformers — notes and key slides · 27 min
7. 3Blue1Brown neural networks ch. 6: attention — notes and key slides · 26 min
8. 3Blue1Brown neural networks ch. 7: how LLMs store facts — notes · 23 min
9. 3Blue1Brown neural networks: what is cross-entropy? — notes · 34 min
10. 3Blue1Brown neural networks: how AI images and video work — notes · 37 min

Course overview10 handouts · 2 h 2 min

Crash Course US History: episode guide and study notes (#1–10)

Episode guide to Crash Course US History #1–10, from Native North America to Jefferson: what each episode covers, the big themes, and our timestamped study notes.

1. Crash Course US History #1, The Black Legend — notes and timestamps · 11 min
2. Crash Course US History #2, Colonizing America — notes and timestamps · 12 min
3. Crash Course US History #3, The Natives and the English — notes and timestamps · 11 min
4. Crash Course US History #4, The Quakers, the Dutch, and the Ladies — notes and timestamps · 12 min
5. Crash Course US History #5, The Seven Years War and the Great Awakening — notes and timestamps · 11 min
6. Crash Course US History #6, Taxes & Smuggling — notes and timestamps · 12 min
7. Crash Course US History #7, Who Won the American Revolution? — notes and timestamps · 13 min
8. Crash Course US History #8, The Constitution and Federalism — notes and timestamps · 13 min
9. Crash Course US History #9, Where US Politics Came From — notes and timestamps · 14 min
10. Crash Course US History #10, Thomas Jefferson & His Democracy — notes and timestamps · 13 min

Course overview9 handouts · 18 h 38 min

Karpathy's Neural Networks: Zero to Hero — lecture guide, notes and code

Lecture-by-lecture guide to Andrej Karpathy's Zero to Hero series: what each of the 9 videos builds, how long it runs, and our notes with code and timestamps.

1. Karpathy's Zero to Hero, Lecture 1: Building micrograd — notes, code and timestamps · 146 min
2. Karpathy's Zero to Hero, Lecture 2: Building makemore (bigrams) — notes, code and timestamps · 118 min
3. Karpathy's Zero to Hero, Lecture 3: makemore Part 2, the MLP — notes, code and timestamps · 76 min
4. Karpathy's Zero to Hero, Lecture 4: Activations, Gradients and BatchNorm — notes, code and timestamps · 116 min
5. Karpathy's Zero to Hero, Lecture 5: Becoming a Backprop Ninja — notes, code and timestamps · 115 min
6. Karpathy's Zero to Hero, Lecture 6: Building a WaveNet — notes, code and timestamps · 56 min
7. Karpathy's Zero to Hero, Lecture 7: Let's build GPT — notes, code and timestamps · 116 min
8. Karpathy's Zero to Hero, Lecture 8: Let's build the GPT Tokenizer — notes, code and timestamps · 134 min
9. Karpathy's Zero to Hero, Lecture 9: Reproduce GPT-2 (124M) — notes, code and timestamps · 241 min

Course overview6 handouts · 8 h 38 min

Sapolsky's Human Behavioral Biology (Stanford): lecture guide and study notes

Lecture-by-lecture guide to Robert Sapolsky's Stanford course Human Behavioral Biology: what each of the 25 lectures covers, how long it runs, and our handouts.

1. Sapolsky Human Behavioral Biology, Lecture 1: Introduction — notes and timestamps · 57 min
2. Sapolsky Human Behavioral Biology, Lecture 2: Behavioral Evolution — notes and timestamps · 97 min
3. Sapolsky Human Behavioral Biology, Lecture 3: Behavioral Evolution II — notes and timestamps · 97 min
4. Sapolsky Human Behavioral Biology, Lecture 4: Molecular Genetics I — notes and timestamps · 94 min
5. Sapolsky Human Behavioral Biology, Lecture 5: Molecular Genetics II — notes and timestamps · 74 min
6. Sapolsky Human Behavioral Biology, Lecture 6: Behavioral Genetics I — notes and timestamps · 99 min

Course overview5 handouts · 6 h 29 min

Harvard Positive Psychology 1504 (Tal Ben-Shahar): lecture guide and study notes

Lecture-by-lecture guide to Tal Ben-Shahar's Harvard Positive Psychology course (PSY 1504): what lectures 1–5 cover, the course's five premises, and our study notes with timestamps.

1. Harvard Positive Psychology Lecture 1, What Is Positive Psychology? — notes and timestamps · 77 min
2. Harvard Positive Psychology Lecture 2, Why Study Positive Psychology? — notes and timestamps · 74 min
3. Harvard Positive Psychology Lecture 3, Is Happiness Random? — notes and timestamps · 83 min
4. Harvard Positive Psychology Lecture 4, The Power of One and the Permission to Be Human — notes and timestamps · 76 min
5. Harvard Positive Psychology Lecture 5, Self-Fulfilling Beliefs and the Power of the Situation — notes and timestamps · 79 min

Course overview9 handouts · 2 h 19 min

NVIDIA GTC 2026 Keynote: Agenda, Timestamps and Where to Start

When and where the GTC 2026 keynote ran, what each segment covers with clickable timestamps, and which of our notes to read first.

1. GTC 2026 Keynote Notes: All 15 Chapters With Timestamps · 139 min
2. GTC 2026 DLSS 5 and 20 years of CUDA: the install-base flywheel · 139 min
3. GTC 2026 token economics: the inference inflection and $1T claim · 139 min
4. Tokens per Watt Explained: GTC 2026's AI Factory Revenue Metric
5. GTC 2026 Vera Rubin platform: 7 chips, 5 racks, what's new · 139 min
6. GTC 2026 Groq LPX + Vera Rubin: token tiers and the 35x claim · 139 min
7. Disaggregated Inference Explained: GTC 2026 Rubin + Groq Split
8. GTC 2026 roadmap: Rubin Ultra, LP35, Feynman, LP40, Rosa · 139 min
9. GTC 2026 NemoClaw and OpenClaw: NVIDIA's agentic OS pitch explained · 139 min
10. GTC 2026 Nemotron Coalition and NVIDIA's six open model families · 139 min
11. GTC 2026 physical AI: robotaxi partners, Isaac Lab, Newton and Olaf · 139 min