Why don't other programming languages have ranges?

[Andrei Alexandrescu]

retard wrote:
>> http://www.drdobbs.com/blog/archives/2009/10/safe_systems_fr.html
>>
>> http://www.drdobbs.com/blog/archives/2009/11/designing_safe.html
>>
>> Sadly, it's a topic that has not penetrated software engineering
>> instructional materials, and programmers have to learn it the hard way
>> again and again.
> 
> But these are your articles with no cited sources about the software 
> methodologies. It seems like they're written afterwards to advertise the 
> features implemented in D. The contract programming only covers a small 
> runtime dynamic part of programming. There's no mention about automated 
> theorem proving. No word about exceptions nor sandboxing with virtual 
> machines. Why? Because these would make D look ridiculous.

Isn't it actually simpler to reason that Walter defined D according to 
his views and expertise?

Andrei