Comment by wtetzner

I was responding to this:

> The core team will insist that variables are immutable but bindings are mutable

The documentation on the Elixir website refers to it as rebinding, and I don't see any references to bindings being considered mutable.

Rebinding means you've created a new binding with the same name. The original isn't being mutated, it's just not accessible anymore because of the scoping rules.