[mcintyre1994]

To be fair Strings would solve a problem I have right now with Scala pre-Dotty, our object IDs are all strings and the compiler does nothing to stop you using a user ID in a method that expects a contact ID, etc.

For your Int[Seconds] example, I haven't used them at all but could it work something like the F# measures concept? That seems sort-of similar but more general from scanning the docs.