Ok.. but why does https://www.calvinbarker.com/blog https://www.calvinbarker.com/blog load 17 js files? What even is https://www.calvinbarker.com/_next/static/

Ok.. but why does https://www.calvinbarker.com/blog https://www.calvinbarker.com/blog load 17 js files? What even is https://www.calvinbarker.com/_next/static/chunks/webpack-79c0811350fe4321.js https://www.calvinbarker.com/_next/static/chunks/webpack-79c... ? Seems like it can be cut down to 16k (3 of which are the favicon!).