No. The catch is that it's hard to write it in a way that doesn't require very fiddly local mutation or explosive allocation. The other catch is that no one ha

No. The catch is that it's hard to write it in a way that doesn't require very fiddly local mutation or explosive allocation. The other catch is that no one has demonstrated that you can do it without a good static type system. It shouldn't be impossible, but there are a lot of challenges in an already challenging algorithm.