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AITech

From 0 to 1, one concept at a time.

Visual explainers on how artificial intelligence and modern technology actually work. Watch a short, go deeper in a lecture, then take the idea apart yourself in the playground.

σ(x) = 1 / (1 + e−x)Every concept is an activation function.

01 · Watch

Shorts

AI Wave: one concept explained in 60 seconds, every day at 7 PM IST. Each episode builds on the last.

All reels on Instagram ↗
AI Wave Episode 5 cover: A $500 gaming card started the AI boom Watch

Latest · AI Wave · Episode 5

A $500 gaming card started the AI boom.

In 2012, an AI called AlexNet was trained on two Nvidia gaming cards and beat every rival by a mile. Here's why chips built for games turned out to be perfect for AI.

  1. CPUA few genius workers, mostly doing things one by one
  2. GPUThousands of simple workers, all at the same time
  3. AIMillions of simple multiplications at once, so it runs best on GPUs

All episodes

Newest first

  1. Episode 5 cover
    Ep 05 · CPU vs GPUA $500 gaming card started the AI boom
  2. Episode 4 cover
    Ep 04 · Data centresWhat does a data centre actually do?
  3. Episode 3 cover
    Ep 03 · ParametersWhat does “70 billion parameters” mean?
  4. Episode 2 cover
    Ep 02 · RLHFHow did chatbots learn to be polite?
  5. Episode 1 cover
    Ep 01 · Gradient descentHow does AI actually learn?

02 · Go deeper

Lectures

Long-form lectures on YouTube that join the shorts into the full picture, with the time to show every step. The first ones are on the way.

Coming soon to YouTube
Lecture 01Planned

How machines learn

From a single guess to a trained network: loss, slopes, learning rates and why it all works.

  • loss
  • gradient descent
  • neural networks

Builds on Ep 01

Lecture 02Planned

How ChatGPT works, end to end

Tokens in, tokens out. What the billions of parameters store, and how human feedback shapes the answers.

  • tokens
  • parameters
  • RLHF

Builds on Ep 02 · Ep 03

Lecture 03Planned

Inside the AI machine

Why AI runs on GPUs, what fills a data centre, and where all that electricity goes.

  • CPU vs GPU
  • data centres
  • power

Builds on Ep 04 · Ep 05

03 · Try it

Playground

Every short gets a hands-on demo. Change a number and watch the idea move. Nothing to install, and nothing you do here leaves your browser.

Roll the ball to the bottom

This is how every AI learns. Set the learning rate, then step. Too small and it crawls. Too big and it bounces right past the answer.

From Ep 01 ↗
Step
0
Loss
7.84
Just right: steady steps to the bottom

Each step moves the ball by learning rate × slope. The loss here is x², so the slope at any point is 2x.

What should we explain next?

Comment or DM a concept that confuses you on Instagram. The best questions become the next shorts.

Suggest a concept