Someone who's drunk the OO kool-ade, I see. :)

I think you'll probably find that the UNIVERSAL class is weaker in perl 6, or at least less UNIVERSAL, than it is in perl 5. That's partially because there won't be a true universal base class for parrot, and partially because there just isn't a real need.

It's important to note, however, that what you're looking for has no business being in any base class. Threading operations are really fundamental language and language engine things, and unless you have a fully OO language (which perl isn't) you're just asking for trouble.