Decision Trees: The Detective Who Solves Cases by Asking Yes/No Questions

Imagine a detective who solves every case by asking a series of clever yes/no questions. 'Was it raining?' 'Was the suspect tall?' Each answer eliminates possibilities until only the truth remains. This is exactly how decision trees work — and understanding this algorithm unlocks the door to Random Forests, XGBoost, and the most powerful ML models in use today.