The main benefit of Elm and Redux is the simplicity of their core abstraction: that your app is just a reducing function over a stream of events from the outside world including game ticks, mouse clicks, &lt;input&gt; field changes, etc.<p>For example, a counter that increments per click:<p><pre><code>    initApp = { counter: 0 };
    stepApp = (action, oldApp) =&gt; oldApp.counter + 1;
    viewApp = (app) =&gt; `&lt;p&gt;Clicks so far: ${app.counter}&lt;&#x2F;p&gt;`;

    currentApp = reduce(stepApp, initApp, mouseClicks);
    currentHtml = map(viewApp, currentApp);
</code></pre>
This makes it really easy to inspect, test, and reason about what&#x27;s actually happening and why since every change to your app had to be caused by an event that triggered a step from oldApp to newApp. Redux and I think Elm come with a debugger that even prints out `{action}, {oldState}, {newState}`. Makes it really easy to get a reading on things.<p>Though it&#x27;s possibly hard to appreciate this until you&#x27;ve battled it out in the trenches with an abstraction that isn&#x27;t so simple, especially on a large, complex app.<p>I personally found Redux (w&#x2F; React) immediately accessible and think it&#x27;s a good place to start, especially if you&#x27;re already coming from React or you want to reap the benefits without leaving Javascript. I&#x27;d feel really comfortable using Redux on any team project that was already using React and some other Flux&#x27;y implementation.<p>I&#x27;ve also been learning Elm this past week though it&#x27;s taking me far longer to become productive since there are fewer resources and I have no ML experience. I&#x27;ve managed to create a simple Spreeder.com-style speed-reader (<a href="https:&#x2F;&#x2F;www.danneu.com&#x2F;elm-speed-reader&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.danneu.com&#x2F;elm-speed-reader&#x2F;</a>), and if you look at the source code (<a href="https:&#x2F;&#x2F;github.com&#x2F;danneu&#x2F;elm-speed-reader&#x2F;blob&#x2F;master&#x2F;Machine.elm#L70" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;danneu&#x2F;elm-speed-reader&#x2F;blob&#x2F;master&#x2F;Machi...</a>), you can see that it&#x27;s not much different from the counter-app example I pitched above where the `update` function reduces across a stream of actions including button clicks and the tick. (Disclaimer: I&#x27;m an Elm noob)