[vyuh]

I think if someone implements this thing without breaking backward compatibility, then it will be valuable even as a fork of the original elm compiler. I think the License allows this.

Also, Evan has not closed this issue since 2015. Most probably it is about "too much work to get it right" rather than "I'm not convinced that we need it".

[cies]

I think type classes is how one would want to fix this. Haskell and PureScript have 'm. But them come with a lot, A LOT, of work. Especially to get the std lib to use them!

With comparability you can use the operators (<,>,<=,>=,==,/=,etc.) on various types. This is not how Elm usually works. I.e. the `map` function is different for `List.map`, `Dict.map`, `Maybe.map`, etc.

In Haskell and PS you have type classes. Some types can be mapped, some can be compared, etc. Then the type class defines what functions should be implemented for such type in order to be part of the type class.

You think it's a small change, but it is pretty much what sets Elm and PS apart. Errors can also get a lot more complex with code that leans heavily on type classes.