The Importance of a Mutable, Imperative Model in Programming

In elm and inzeo there is a very distinct separation between, here's the description of my thing, and then here's the runtime that actually takes that description. And i think maybe we just haven't been doing it long enough to be able to understand thatit's necessary for a new programme or two to cut a heav. It's like, ye, we know things mutate. But what we're trying to do is, is isolate ourselves as much as possible from that mutation,. so that our code doesn't inherently have flaws in it.