AI Skill Course
Module 03 of 08
Lesson 03 · 30 minutes · Beginner

The AI hiding
in your day.

It made 200+ decisions about your life yesterday. You noticed almost none of them. Today, you'll see them all — and learn how each one actually works.

You'll find
8 hidden AIs
You'll train
A recommender
You'll meet
Your data profile
Open your eyes
00 06 12 18
Part 01 · The guess

First, a number.
Then, the truth.

Slide your guess. We'll show you what researchers found when they actually counted.

How many times did an AI system touch your life yesterday?

25 your guess
050100200500+

The honest answer: somewhere between 200 and 400 times.

And that's only what you can measure. Every scroll, every photo, every search, every notification — most modern apps run multiple AI models per interaction. The number's likely higher than that.

Part 02 · The hidden field

8 ordinary objects.
8 hidden AIs.

Each of these lives on your desk, in your pocket, or in your hand. Tap any one to reveal the AI working inside it — and how it actually works.

AIs found
0 / 8

Tap any object →

Part 03 · The families

Every AI on Earth
belongs to one of four families.

Recognizing which family an AI belongs to is the fastest way to understand any new AI you'll meet — even ones that haven't been invented yet.

AI that sees
// Computer Vision
  • Face unlock
  • Photo organization
  • Self-driving cars
  • Medical scans
AI that hears
// Speech & Audio
  • Voice assistants
  • Live transcription
  • Noise cancellation
  • Music identification
AI that reads & writes
// Natural Language
  • ChatGPT & chatbots
  • Translation
  • Spam filters
  • Autocomplete
AI that predicts
// Prediction & Recsys
  • Netflix, Spotify, TikTok
  • Traffic estimates
  • Fraud detection
  • Demand forecasting
Part 04 · Behind the curtain

How does Netflix know what you'll
like next?

It's not magic. It's not "your data." It's a beautifully simple idea called collaborative filtering. Watch it work, step by step.

Users × Movies 5 USERS · 5 MOVIES
Step 0 · Where we start You're the blue row. We know what you liked (the ones marked ♥) and what you haven't seen yet (the empty squares). The question: which of the unseen movies will you like?
Part 05 · The mirror

What AI already knows
about you.

This is a simulated personal data profile — but it's the kind every major app actually builds about its users. None of these inferences require you to "say" any of them. They're guesses based on your behavior.

User Profile · #anonymous_47291

Live · inferred from behavior
Why this matters.

You didn't tell any app you were a "late-night planner" or "trying to stay healthy." It inferred those — and dozens more — from scrolling patterns, click times, video pauses, and which notifications you swiped away. Most of the time this makes apps useful. Sometimes it makes them spooky. Knowing it's happening is step one.

Part 06 · Knowledge check

Five questions.
You're halfway through the course
already.

Wrong answers explain themselves. Aim for 4/5 and you're ready for Module 04.

Question 01 of 05

0/5

Continue
Module 03 complete

You can never unsee
what you just saw.

You can now spot AI in everyday objects. You understand the four families. You know how recommendation engines actually work. And you've met your invisible data profile. That's a real skill.

Up next · Module 04

Talking to AI: Prompt Engineering 101

The single most valuable skill in the modern AI era — and you can learn the fundamentals in 35 minutes. With a live prompt playground.

Continue to Module 04