I've now been using "Hello Worlds!" rather than the proverbial "Hello World!" in Java programming. I have adopted that practice to remind myself of the "Plurality of Worlds" that is right before our very eyes. In my opinion, the new generation will wake up to the continued proliferation of Worlds - in the real, virtual, imaginary and theoretical domains.
Let me expound upon this idea by noting the growing discovery of new exoplanets - other planets outside our Solar System. Thanks to the new field of Exoplanetology, we are uncovering new worlds that have now begun to enter the thought-sphere of humanity. Our Earth is just one among billions and billions of other worlds in outer space.
On the other realm, we have Virtual Worlds that may yet still seem crude and "artificial" at this point in time, but nevertheless can be considered as "Worlds" in their own right. We have the Metaverse, as best represented by Second Life. And we have Massive Multiplayer Online Games (MMORPG) best exemplified by World of Warcraft. And as of this writing, I am awaiting the release of Spore, which might introduce a new genre, that between an MMO and a networked game.
We have the so-called "Parallel Worlds" in theoretical physics that seems far-fetched and inaccessible. They are a favorite in Sci-Fi, but who knows what a few decades could have in store for us? Our future progenitors may be crossing them to visit other worlds not only in space, but in time as well.
And last but not the least, I recognize the infinite worlds that are powered by human imagination. Not to mention the wondrous Worlds that privately exist within each human mind, it is time to recognize these beautiful "Worlds" of fiction - as produced by the mind and the collective consciousness of the human race. Why should the digital worlds and the modern new worlds get all the credit?
Hence, 2008 is the year I mark as the "Era of Worlds". And I recognize it as such to introduce "Hello Worlds!" in programming java (at least to start from my own little world of coding). After all, all Worlds - real and imaginary - may not be possible without programming, right? Even our very own universe had to have its Cosmic Laws "programmed".
Who knows, the fractal property of the universe to spawn "worlds within worlds" may be encoded deep within the Laws of the Cosmos.
Well, perhaps in line 777 of The cosmic source code, we may find "Hello Worlds!"