> Furthermore, dependency injection frameworks encourage you to think in terms of globals. That’s what they inject! A single, globally-configured instance of a class. Think about it. If you one day want two different instances of an injected variable, you’ll need an impact driver to express just how screwed you are. This has all kinds of knock-on effects in terms of reducing encapsulation and separating state from behavior.

What? I legitimately do not understand what this bit of the article is about. Surely the author knows of instance scopes[0] (as they are called in the DI framework I tend to use, Autofac), right? Expressing this kind of instance configuration does not require an "impact driver," whatever that means; it's just a simple matter of replacing .SingleInstance() or whatever in your bootstrapper function with an InstancePerDependency (the default) or Named or Keyed or _whatever_ kind of relationship/instance scope you want. Does this actually represent some horrible crufty sin?

[0]: https://docs.autofac.org/en/latest/lifetime/instance-scope.h...