There's the AI you read about in headlines — chatbots, AI agents, "AGI is near" claims — and there's the AI that's quietly running inside systems you use every single day without ever thinking about it. The second one is far bigger in actual economic impact, far less glamorous, and far more relevant to what you'll likely build early in your career.
1-A 2-A 3-A 4-A | 5 ML/classification 6 ML models 7 = Feed ranking, spam filter, maps ETA, autocorrect, recommendations 8 = Healthcare: faster/more consistent scan screening 9 = Models amplify patterns in their training data, including unfair ones | 10 = Long-horizon reasoning, causality, true understanding