Why is D unpopular

[bauss]

On Monday, 13 June 2022 at 08:07:05 UTC, Mike Parker wrote:
>
> But why should that compile? You're trying to manipulate `_c` 
> through an instance of `Bar`. It's not visible in any `Bar`, 
> ever, so why should it be visible here? It has to be gotten at 
> through the interface of `Foo`.

Because I'm in the module of a, _c is a member if Foo, Foo is in 
a.

Thus _c should be accessible within a regardless of whether it's 
public within the b module or not.