Vector databases

As I promised, let me brief you a little about vector databases. I have taken the approach of explaining it to a 10-year-old; you can skip to the last paragraph of this section if you are not comfortable with this explanation.

Imagine that you have a big box of toys. Each toy has many different features, such as its shape, color, size, and material. You could describe each toy in words, but that would be very time-consuming and difficult to search through. A vector database is a way to represent each toy as a set of numbers, called a vector. Each number in the vector represents a different feature of the toy.

For example, the first number might represent the toy’s shape, the second number might represent its color, and so on. Vector databases are very efficient for searching. For example, you could search for all the toys that are red and ball-shaped. The vector database would simply compare the vectors of all of the toys to find the ones that match your...