Comment by germandiago

Better ergonomics for what? For refactoring with a zillion lifetime annotations? Annotations go viral down the stack call. That is a headache. Not useless. I know it is useful. Just a headache, a price to pay. For linked structures? For capturing an exception.

No, it is not more ergonomic. It is safer. That's it.

And some parts of that enforcement via this model is terribly unergonomic.