Many of these names come from Unix, and we chose not to make an opinionated renaming of something that most C programmers are already familiar with. Regarding r

Many of these names come from Unix, and we chose not to make an opinionated renaming of something that most C programmers are already familiar with. Regarding rt - read the docs, it's a low-level module which is not meant to be used by most users. Arrays and slices are built into the language, sets and maps are not. Much like C, though slices are new to Hare. I like the concise names. It's a matter of taste.