A possible future purpose for D1 [rant]

[bearophile]

Walter Bright:
> 5. I've discovered over the years that programmers write in particular 
> "islands" of the language. No matter how large a code base they produce, 
> they never stray outside that island, so once the bugs they initially 
> encountered are fixed, they never run into compiler bugs anymore. The 
> coverage of a test suite is simply not a function of number of lines of 
> code thrown at it.

This is interesting. I know that different groups of C++ programmers use a different "tidy" subset of C++ (for example Google coding standards forbid many C++ features), but I have never read of this.
I presume the mind of human programmers works in a more grammar-based way compared to the normal linguistic generative capabilities. I'll send an email to Steven Pinker about this.

Bye and thank you,
bearophile