Comment by d_burfoot

As someone who uses a lot of "core" Java (ie not the messy ecosystem), and gets a lot of really complex stuff done with it, I read these articles about high-tech language features like algebraic data types and ultra-strict typing, and I think, what are these people actually doing? The vast majority of software engineering consists of simple operations that move data from one place to another - from a DB to a JSON file, from a REST endpoint to a browser screen. Is all this machinery really helping? Are you sure?