Alex Vilenkin PAU, Komisja Filozofii Nauk, Kraków, 2012 09 17
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Recent developments in cosmology suggest that the big bang was not a unique event in
the cosmic history.
Other big bangs constantly erupt in remote parts of the universe, producing new
worlds with great variety of physical properties.
Some of these worlds are similar to ours, while others are strikingly different and
even obey different laws of physics.
I will discuss the origin of this new worldview, its possible observational tests,
and some of its strange implications.