The only way the Hartle-Hawking wave function can explain an expanding universe with a reasonable probability is if the many-worlds picture is the right one.
In the many-worlds view, both of these universes exist regardless.
"We have so many more worlds that could be a locus for life, but so much less information upon which to understand the habitability of that world, " said astrobiologist Tori Hoehler at NASA's Ames Research Center in Mountain View, Calif.
Dr Alan Boss of the Carnegie Institution of Science said many of these worlds could be inhabited by simple lifeforms.
NASA's issuing back pats all round, as finding Kepler-37b has highlighted "the precision of the Kepler instrument" (although admittedly, the star's behavior was favorable), and suggests there are many more humble worlds of similar size awaiting our detection.
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"It is the worst of all worlds in many ways, " said Mihir Desai, a professor at Harvard Business School.
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It represents an approach that could provide the best of both worlds for many consumer users who happen to have a large amount of content on their computers.
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Throughout his adult life, Pat Moynihan was part of so many different and opposing worlds that having it both ways was almost a way of life for him, for good and for ill.
Today, many videogames involve complex fictional worlds and give players free rein to create and shape characters including the chance to mold their moral compass.
Matthias Mikshe, founder and head of Stardoll, said many firms were developing virtual worlds for children because young people were far more familiar with them than their parents.
Taken together, the observational and modeling results imply that many extrasolar systems harbor distantly orbiting worlds, though such planets are tough for astronomers to detect at the moment, researchers said.
"Billions upon billions of worlds are out there, many of them surely teeming with life, "he writes.
Linking the online and offline worlds is an aim that many businesses dedicate a considerable chunk of their time to.
Many professional athletes like to escape within videogame worlds after a big game or while on the road.
Facebook profiles are crafted with friends and family in mind, not potential bosses, and for many that's a welcome separation of worlds.
Like Adriana, many second generation Hispanics constantly navigate between two worlds and two languages: the English in which they learn at school and socialise, and the Spanish they speak at home with their parents.
Despite "Second Life's" waning popularity as a destination for businesses--partly a result of virtual vandalism and other unpredictable behavior by the world's more eccentric inhabitants--she insists that private virtual worlds like Forterra's can offer many of the same advantages without the risks to security and productivity.
Not many individuals have credibility in or understanding of those three worlds at the same time.
There are only so many times any little girl can re-enact the worlds of Belle, Ariel, Cinderella and Snow White.
Many are spending their time in the highly hierarchical game worlds of Lineage and Lineage II, which have active populations exceeding 2 million.
Never before have there been so many options for gamers to keep active while still immersed in virtual worlds.
In 20 years, many of us will spend much of our time in game-inspired virtual worlds.
And if you're among those who have to run a few Windows-only applications at home--where you're a dedicated Mac-lover--in many cases Virtual PC offers a way to keep your feet in two computing worlds.
Compiled by PwC during the last three months of 2007, the poll suggests a "tale of two worlds", with business confidence slumping in developed economies like the United States and many European countries.
Trion Worlds is announcing that its strategy game End of Nations will be free to play, as many social games like Zynga are.
There are many ways to create jobs, and there are several options to support green energy, but the two worlds are entirely distinct.
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Newspapers, moreover, reported no deaths or serious injuries related to The War of the Worlds broadcast: had panic and hysteria seized America that night, the mayhem surely would have caused many deaths and injuries.
While many companies are struggling in this sluggish recovery Harry Winston Diamond Corp. seems to have the best of both worlds as it has businesses in the diamond mining sector and as a luxury jewelry and watch retailer.
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