DIP69 - Implement scope for escape proof references

[via Digitalmars-d]

On Thursday, 11 December 2014 at 13:43:07 UTC, Nick Treleaven 
wrote:
> It will, use @system.

Yes…

> Maybe this proposal will be supplemented later, but there are 
> always costs to making the language more complicated. We need 
> to be certain they are worth it before adding them. A cautious 
> approach can be extended later, if the situation demands it.

Can it be extended later? Without breaking stuff?

You need to get it right from the start, otherwise you end up 
with N different, but incompatible ways of doing the same thing. 
That means you need to get ownership right first.