Each universe is merely a small part of a larger "multiverse."īy this very definition of "universe," one might expect the notion of a multiverse to be forever in the domain of metaphysics. They are the most straightforward example of parallel universes. Likewise, the universes of your other selves are spheres of the same size centered on their planets. The most distant visible objects are now about 4 X 10 26 meters away-a distance that defines our observable universe, also called our Hubble volume, our horizon volume or simply our universe. The farthest you can observe is the distance that light has been able to travel during the 14 billion years since the big bang expansion began. You will probably never see your other selves. There are infinitely many other inhabited planets, including not just one but infinitely many that have people with the same appearance, name and memories as you, who play out every possible permutation of your life choices. In infinite space, even the most unlikely events must take place somewhere. The estimate is derived from elementary probability and does not even assume speculative modern physics, merely that space is infinite (or at least sufficiently large) in size and almost uniformly filled with matter, as observations indicate. This distance is so large that it is beyond astronomical, but that does not make your doppelgänger any less real. The simplest and most popular cosmological model today predicts that you have a twin in a galaxy about 10 to the 10 28 meters from here. The idea of such an alter ego seems strange and implausible, but it looks as if we will just have to live with it, because it is supported by astronomical observations. But perhaps he or she now decides to put down this article without finishing it, while you read on. Is there a copy of you reading this article? A person who is not you but who lives on a planet called Earth, with misty mountains, fertile fields and sprawling cities, in a solar system with eight other planets? The life of this person has been identical to yours in every respect. It could even answer fundamental questions about the nature of time and the comprehensibility of the physical world. The presence of those universes would explain various strange aspects of our own. When cosmologists consider theories that are less well established, they conclude that other universes can have entirely different properties and laws of physics. Scientists can even calculate how distant these universes are, on average.Īnd that is fairly solid physics. Those regions are a type of parallel universe. Beyond the range of our telescopes are other regions of space that are identical to ours. If so, then somewhere out there, everything that is possible becomes real, no matter how improbable it is. One of the many implications of recent cosmological observations is that the concept of parallel universes is no mere metaphor. Not just a staple of science fiction, other universes are a direct implication of cosmological observations
0 kommentar(er)
