Why is D unpopular

[Ola Fosheim Grøstad]

On Saturday, 11 June 2022 at 18:03:14 UTC, Max Samukha wrote:
> On Saturday, 11 June 2022 at 15:43:52 UTC, Ola Fosheim Grøstad 
> wrote:
>
>>
>> Simula was created for simulation. It added inheritance and 
>> virtual functions to an Algol like language. You don't need 
>> encapsulation to do simulation.
>
> Yes, you can break encapsulation with Simula. You need to rely 
> on discipline.
>
>>
>> Talking about Smalltalk in this context is strange.
>
> Or talking about Simula, which doesn't have a mechanism for 
> encapsulation.

C++, Java and D follows Simula. Simula's protection levels were 
added in the 70s: hidden, protected and hidden protected, but the 
defining characteristics is class inheritance, virtual functions 
and coroutines.