C++0x Concepts - Dead?

[Walter Bright]

BCS wrote:
> Reply to Walter,
> 
>> How could I do partial ordering if one constraint expression accepts
>> only "odd" integers? 
> 
> you wouldn't, but rather ignore that clause and mine the constraints 
> that you would use out of the expression (see my post for details)

Then aren't things getting just as, or even more, complicated?

My big beef with Concepts is it was 40 pages of specification. D's 
constraints are a couple lines of specification. To replace them, it 
needs to be significantly simpler, not just different.