Rant after trying Rust a bit

[Walter Bright via Digitalmars-d]

On 7/23/2015 11:05 PM, H. S. Teoh via Digitalmars-d wrote:
> Yes, the value of Concepts mostly comes from the, um, concepts that
> group together a set of traits that characterize a particular category
> of types. Like input range, forward range, or output range.  It's of more
> limited utility for testing traits individually.  You're not really
> thinking in terms of individual traits, at least not directly, when
> you're using Concepts; you're thinking in terms of the conceptual
> abstraction that the Concept represents. The compiler does the checking
> of individual traits for you.


That's true but it changes nothing about what I wrote. Just replace "hasPrefix" 
with "hasInterfaceA". The points I brought up remain.