Not only is UNIX dead, it's starting to smell really bad.
Fancy algorithms are slow when N is small, and N is usually small.
Such is modern computing: everything simple is made too complicated because it's easy to fiddle with; everything complicated stays complicated because it's hard to fix.
There's nothing in computing that can't be broken by another level of indirection.
If POSIX threads are a good thing, perhaps I don't want to know what they're better than.
Why would you have a language that is not theoretically exciting? Because it's very useful.