Vision for the D language - stabilizing complexity?

[Andrei Alexandrescu via Digitalmars-d]

On 07/12/2016 11:07 AM, Steven Schveighoffer wrote:
> A related question: are we planning on making such access pure (or even
> allowing compiler to infer purity)? If so, we may have issues...

Was that the link you posted? What's a summary of the issues and what do 
you think would be a proper way to address them? Thanks! -- Andrei