Posts tagged ‘plurality of worlds’

February 9th, 2014

Q&A 38: The Infinite Set of You in the Multiverse

by Max Andrews


Dear Mr. Andrews,

I came upon your blog and I shall spend the better part of the night reading it, and I have a few questions about the multiverse that I don’t understand.

First off, why is it inevitable that some parallel universes would be identical to this one? Why would there be another me, identical down to each thought, instead of endlessly unique ones? That is to say, why would there be an infinite number of universes but only a finite variety of patterns?

Also, would endlessly different ones render the fantastic real? Unicorns and Greek gods roaming universes of their own?

Or have I missed what MWI supporters are trying to say?

Also, if the multiverse allows for at least a few super civilizations to exist, so powerful that they can create their own universes or cross others, then wouldn’t they essentially function as gods, albeit not our eternal one?

Thank you so much, and Happy New Year!


Katy Meyrick

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February 1st, 2013

The Less-Than-Best Problem and Modal Realism

by Max Andrews

Gottfried Wilhelm Leibniz developed a similar idea to Thomas Aquinas’ doctrine of variety, which is known as the principle of plenitude.  He argues that there must be diversity in that which changes.[1]  This change and diversity is what produces the specification and variety of simple substances.  This diversity must involve a multitude in the unity or in the simple.  For, since all natural change is produced by degrees, something changes and something remains.  As a result, there must be a plurality of properties and relations.[2]  The principle of plenitude entails absolutely every way that a world could be is a way that some world is and absolutely every way that a part of a world could be is a way that some part of some world is.[3]

The principle of plenitude has been used to argue against modal realism.  The principle is supposed to ensure that there are no gaps in logical space.  There is some real concrete universe for every way a world could be.  This entails that there may be a plurality of worlds that are on balance more bad than good.  Theistic modal realism entails that each possible world is a real concrete universe that a perfect being has actualized.  In the Leibnizian tradition, the principle entails at least some of the worlds are so bad that no perfect being could actualize them.[4]  Hence, Leibniz committed to this world being the best of all possible worlds.[5]  This is called the less-than-best problem.

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July 2nd, 2012

The History of the Multiverse and the Philosophy of Science

by Max Andrews

The Pre-Socratics were the first philosophers of science.  They were known as the sophos (the wise ones).  They were ecliplised by the British and German philosophers of science in the seventeenth century and were largely disconnected from science hence forth. Science sets the agenda, but philosophers bring philosophical reasons instead of scientific reasons.  Science answers the questions. The Pre-Socratics were the first to deal with metaphysics and did so to provide a rational philosophy.  This allowed for a rational and objective observation and the use of reason to systematize and order the content to make it coherent.

The Sophists were worldly-wise in contrast with the sophos–frustrated by the plurality of answers in the current philosophy. The Sophists were the original skeptics as evidenced in Pyrrho. They came out of the sixth century BC and broke away from religious dogma, which had never happened before.  Their methods were pragmatic and subjective–rhetorical and fashionable.  The phrase, “The One and the Many” became important.  The One (reality) had everything related to it (Many).  This is where we get Monism–the quality of oneness.  We see Monism appear later in Leibniz’s monads, which take us to a single substance and leads to atomic theory.

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