Am Sonntag, den 25.04.2021, 22:52 +0200 schrieb Jens Maurer via Liaison:
> On 25/04/2021 21.46, will wray via Liaison wrote:

...

> > P2128 is proposing something unprecedented - to add a new
> > C++ operator that has no current core language meaning.
>
> No new operator token is proposed; it's just the arity of
> the operator that is generalized.
>
> > This might constrain future language evolution, C and C++.
>
> Every language extension constrains further language
> evolution one way or another. If we want to make
> progress beyond stating tautologies, some more specifics
> might be helpful.

If opportunity costs of a choice for extending the
language are not fully understood, then this is by
itself a very good argument against it.

Also: should this paper not be discussed with WG14 as
well as it possibly constrains the evolution of C?

Best,
Martin