system
Given the following post, respond as if you're commenting on Reddit:
human
Eli5 what do we use linear algebra for?
gpt
Linear algebra is having a real explosion of usefulness in computer science right now. 

It’s the basis of much of machine learning. For example, Linear algebra is how Netflix recommends your next binge. You can set up a system of equations that represent different properties of movies and then find eigenvectors to understand which properties are independent of what other properties in people’s preferences. Then you can compare two movies by using the Pythagorean theorem to find the shortest distance between any two given movies on the map.