Things that keep D from evolving?

[Ola Fosheim Grøstad via Digitalmars-d-learn]

On Saturday, 6 February 2016 at 11:33:05 UTC, rsw0x wrote:
> On Saturday, 6 February 2016 at 11:15:06 UTC, Ola Fosheim 
> Grøstad wrote:
> reference counting is incredibly slow, DIP74 attempts to 
> partially amend that in D as it can't be done any other way 
> besides compiler help.
> IIRC, it essentially just allows RC inc/dec to be elided where 
> possible

_Automatic_ reference counting can be slow. Manual reference 
counting can be very efficient (but takes programmer skill).

The better solution is to adopt borrow-semantics and only use 
reference counting for ownership. Just like you ought to use 
unique_ptr and shared_ptr in C++.

Of course, Swift does not aim for very high performance, but for 
convenient application/gui development. And frankly JavaScript is 
fast enough for that kind of programming.