ELI5: Explain Like I'm 5

Curse of dimensionality

Curse of dimensionality means that as you add more and more “dimensions” (or features) to something, it starts to get harder and harder to measure or draw useful conclusions. Imagine a maze with many walls and paths. As you add more paths, it becomes harder and harder to find your way out. The same is true with data – as you add more features and more dimensions, it becomes harder to find the patterns or to visualize it.