What AI is and why it matters now
AI is a way of learning patterns from data so a system can make predictions, rank options, or automate decisions.
Course summary
Use this page to revisit what each stage gives you and return to the exact weak point that needs another pass.
Stage 1 of 3
Start from data, simple models, and how to read accuracy and bias without drowning in maths.
AI is a way of learning patterns from data so a system can make predictions, rank options, or automate decisions.
In AI, the word data sounds fancy, but it is usually boring.
When we say a model learns, we mean it changes its internal settings so it can make better guesses.
AI systems can cause harm even when everybody is trying to do the right thing.
Stage 2 of 3
Work with evaluation, features, embeddings, and practical model use without the buzzword fog.
A model is still a function that turns input into output.
Raw data is rarely ready for a model.
Accuracy is an easy number to like because it feels clean.
Deployment is where good models go to die.
AI systems do not understand intent or truth.
Stage 3 of 3
Transformers, agents, diffusion models, and how real AI systems are designed, governed, and sometimes misused.
A model is a component that maps inputs to outputs.
Scaling is not a single knob.
Evaluation in production is not a single score.