Hi, I maintain Redux and created RTK. I'm going to do my best @davidkpiano impression and point out that "Redux, as typically used, is _half_ a state machine"

Hi, I maintain Redux and created RTK. I'm going to do my best @davidkpiano impression and point out that "Redux, as typically used, is _half_ a state machine" [0] , in that a typical reducer responds to actions regardless of what the current state value might be, whereas a true Finite State Machine always checks the current state first before deciding if the current event is relevant. You _can_ absolutely write Redux reducers as true state machines. With `createSlice`, you'd generally need to have a field in the slice that's some kind of enum, and check that first inside of a reducer: const someSlice = createSlice({ name, initialState: {status: "x", someData}, reducers: { somethingHappened(state, action) { if(state.status === "x") { // _now_ consider if the "somethingHappened" action is relevant } } } }) Very doable, but not the most ideal syntax, since `createSlice` is focused on "here's an action / thing that happened, here's the reducer that handles that". On the flip side, you can also use XState state machines as Redux reducers. A state machine is, after all, a function that takes a current state value + some event, and returns a new state.... exactly the same as a reducer function! David and I have been saying for a while that we'd like to have a more official integration between XState and Redux. A while back, Matt Pocock put together an proof of concept for what a `createXStateSlice` might look like [1]. I actually sat down with David a couple weeks ago and we did some further design discussions about the possibility of using the `@xstate/fsm` package (a smaller version of XState's logic) as a starting point, and generating RTK actions based on that. No code yet, but it seems feasible. [0] https://dev.to/davidkpiano/redux-is-half-of-a-pattern-1-2-1hd7 https://dev.to/davidkpiano/redux-is-half-of-a-pattern-1-2-1h... [1] https://github.com/mattpocock/redux-xstate-poc https://github.com/mattpocock/redux-xstate-poc