Is there any good reason why C++ namespaces are "closed" in D?

[Walter Bright]

On 8/1/2018 12:01 PM, Manu wrote:
> You've never justified the design
> complexity and the baggage it carries.
Don't confuse you not agreeing with it with I never justified it.

And please don't confuse me not listening to you with me not agreeing with you.

It *is* possible for reasonable people to disagree, especially when any solution 
will involve many tradeoffs and compromises.