[skitter]

> it's a local binding getting bound to different values on each scope entry.

It is, I just wanted to point out that the term "immutable variable" is sensible. I think a good way to put it is that b is a variable, and when the statement runs a value is bound to b. So the value bound to b varies yet b can be immutable, in contrast to a constant which is a binding to always the same value.

> Did you mean `const b = a;` ?

Fixed, thanks :)