Vision for the D language - stabilizing complexity?

[Kagamin via Digitalmars-d]

On Thursday, 14 July 2016 at 12:12:34 UTC, Ola Fosheim Grøstad 
wrote:
> I don't have time for a long rant on this... But if you are 
> designing a truly new langauge  (and D isn't), then you create 
> prototypes, then you build a framework that is suitable for 
> evolutionary design, then you spec it, then you try to prove it 
> sound, then you implement it then you trash it, and redesign it 
> and write a new spec.

What's the reason to implement what can't work even for you alone?