Machine Learning (ML)
A subset of AI where systems learn patterns from data instead of being explicitly programmed. ML powers recommendation engines, image recognition, fraud detection, and most modern AI tools.
Why this matters
Machine learning is the foundation of every AI tool you use. When ChatGPT generates text, when Midjourney creates images, when Spotify recommends songs — it's all ML. Understanding ML helps you evaluate AI tool claims and know what's actually possible vs hype.
Real-world example
Netflix uses ML to predict what you'll watch next based on millions of viewing patterns. Gmail uses ML to filter spam. Surfer SEO uses ML to analyze ranking factors. The difference between "AI" and "ML" in practice? ML is usually the specific technique doing the work.