Searching Billions in Seconds: How HNSW Solved the Scale Problem

We have a massive problem with how computers find things. If you have a few hundred photos on your phone, you can find one instantly, but trying to find one specific item out of a billion creates a massive technical strain. Most systems rely on " Linear Search ", which is like looking through every single page of a ten-million-page book to find one word. This "one-by-one" approach makes real-time tools like chatbots or movie recommendations grind to a halt as the data grows. Furthermore, modern