The backbone model api was made with totally mutable data in mind. React, on the other hand, only works well with immutable props and some mutable state in the top levels of components. That&#x27;s our first issue, for sure.<p>Backbone also has a dependency on jQuery, which isn&#x27;t very useful in React apps since mutatuing the DOM (one of jQuery&#x27;s main purposes) is a no no. So most of the Backbone library isn&#x27;t very useful to us anymore. I do still really enjoy the backbone way of fetching and saving models, especially in a Rails context. But I think we can get those features in other ways.