Reading the publication, I don't see that big a difference to existing purely functional languages. It almost reads like a rediscovery and refinement of the mai

Reading the publication, I don't see that big a difference to existing purely functional languages. It almost reads like a rediscovery and refinement of the main value propositions of e.g. Haskell. That said, some of the refinements, especially the (TypeScript-inspired?) record typing and manipulation facilities, look quite pleasant.