Analysis And Implications Of Isolated Worlds

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I. Further analysis and implications of isolated worlds One of the fundamental tenants of this view is that these possible worlds must not engage with one another in any way. In order to be fully isolated, the occurrence of something in one world does not and cannot influence what goes on in any other world. Lewis goes on to say that an infinite number of such worlds exists. This is because there is an infinite number of possibilities for how one part of a world could possibly be. Lewis includes possible worlds that do not obey our rules of nature, ones in which no life exists. For each of these ways that a world or a part of a world could possibly be, there absolutely exists another world that is in fact that way (Plurality of Worlds 209, 222). Lewis refers to this as ‘plentitude.’ All of these different worlds, including our own, are the same kind of thing, making one no more real than any other. The view holds that this world does not differ from others in its manner of existing. Thus the “actual” world, for Lewis, is just wherever “here” is. For us, the actual world is our universe. However, someone in another world can say that the same statement referring to a different universe (their universe) and the statement would hold true in both cases. At this point, it seems natural to object that Lewis’ view is nonsensical. How can it be true that both this universe and some other universe are the actual world? Lewis responds with the claim that our notion of actuality is
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