Well, as Larry says, "If you're determined to reinvent the wheel, at least try to invent a better one."
And if the current vm techology is an all-purpose radial, then the Perl6 effort is a high-performance tire, capable of higher speeds, tighter turns, and performance in worse conditions. And it's optimized for the kind of driving that the Perl6 car does.
Seriously, Perl needs a different type of VM than Java. Go to dev.perl.com or talk to Dan Sugalski or Simon Cozens to see why.
-pete

Entropy is not what is used to be.