Why is D unpopular

[forkit]

On Monday, 13 June 2022 at 01:07:07 UTC, Mike Parker wrote:
> On Sunday, 12 June 2022 at 23:15:30 UTC, forkit wrote:
>> On Sunday, 12 June 2022 at 14:56:53 UTC, Mike Parker wrote:
>>>
>>
>> It takes a certain amount of ' ?? ' (not sure of the right 
>> word to use here) to not be surprised, when you're new car 
>> arrives and you're told "only brakes on the rear are necessary 
>> in this car", when you're experience is, that brakes on all 
>> wheels are more likely to protect you from an accident.
>
> The ?? is that you think this is a relevant analogy.

let's forget analogies!

how about two questions on your end of semester exam instead:

Withing a module:

(1) What is the disadvantage of having an 'optional' access 
modifier, such as 'class private', so that you can separate 
interface from implementation?

(2) what is the disadvantage in leveraging the compiler to help 
us in determining whether code outside that class, but within the 
same module, is correctly using that interface?