You're already doing parrellization. Any program that has portions running together is using parrellization. Though it isn't true "parrellisim" unless you're on a multi-processor machine, a cluster, or one of those new-fangled hyperthreading processors, but that's a pesky detail that I'm ignoring for the moment.

Recommended style here is "whatever works for you" :)

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I wanted to explore how Perl's closures can be manipulated, and ended up creating an object system by accident.
-- Schemer

Note: All code is untested, unless otherwise stated