> I think the real issue is they were branded as a killer feature but in reality their usefulness is a little more niche than a mutex. Agree - and many people

> I think the real issue is they were branded as a killer feature but in reality their usefulness is a little more niche than a mutex. Agree - and many people are surprised to learn both: a) how fast mutex ops are in practice, and b) how channels use mutexes under the covers.