I’ve been using Scala professionally for 3 years. I don’t know what I’m doing most of the time because we have a ton of implicites and monads and extension methods. I just know the general idea and can get where I want by reading types.

I’ve been creating a language for fun for nearly 6 years. I often don’t know what’s going on under the hood because it’s somewhat complex. I think this is normal for every language. You don’t have to know everything to be able to use it. You don’t have to write blog posts once a week about the language subtleties you found.

Yes, that’s the one!

I know of which-key.nvim that help you search your key map.

There is somewhere a plugin that will belittle you for using jjj instead of 3j too, and I think that’s more like what you look for. I couldn’t find it, if anyone knows it!