Posts tagged ‘multiverse’

May 17th, 2012

Sententias Products

The Sententias Store, Academic Alley, is full swing.  Please continue to check out the book of the week and my highly recommended books in the right margin.  Also, make sure you visit and get some Sententias apparel. You can see one of the multiverse t-shirts below purchased by Sean, a follower of the blog. If you have any recommendations for more products please let me know. Enjoy!

April 17th, 2012

Nonlocality as Evidence for a Multiverse Cosmology

The following is an abstract from a paper written by Frank Tipler–a major proponent in the fine-tuning/intelligent design dialogues. I believe this is one of Tipler’s papers that he has been trying to get published for a while but has been unable to because it challenges the status quo concerning the issue of nonlocality in quantum mechanics.  I found the paper very interesting and it’s a very short and easy read.

I show that observations of quantum nonlocaltiy can be interpreted as purely local phenomena, provided one assumes that the cosmos is a multiverse. Conversely, the observation of quantum nonlocality can be interpreted as observation evidence for a multiverse cosmology, just as observation of the setting of the Sun can be interpreted as evidence for the Earth’s rotation.

April 17th, 2012

A New Drake Equation: The Probability of Life in the Multiverse

The Drake equation is advocated by SETI (Search for Extra Terrestrial Intelligence) to show that the probability for ETI has a high probability (N).

N=N*×fp×ne×fl×fi×fc×fL

  • N* Number of stars in the Milky Way
  • fp Number of habitable planets in each system
  • ne number of planets that are Earth like
  • fl number of planets that emerge from inorganic matter or organic precursors
  • fi fraction of those planets on which intelligent beings also evolve
  • fc fraction of those planets on which sufficient communications technology arises
  • fL fraction of average planet lifetime

The problem with the equation is that each f is a number between 0 and 1, the product of the equation will be vastly lower than the total number of suitable stars in the galaxy N*.  Many variables are unknown.  So, the numbers that are brought in depend profoundly on the assumptions we bring into the problem.

March 28th, 2012

Word of the Week Wednesday: Modal Realism

The Word of the Week is: Modal Realism

Definition: Modal realism is the idea that all modal possibilities are actual.

More about the term:  Anything that is possible actually happens.  However, modal realism is, in a sense, modally limited.  The state of affairs of the non-existence of anything cannot be true if something does exist so by definition modal realism must entail ~∃!W with W being the non-existence of anything—nothing, lest it suffer the consequence of being intrinsically incoherent (~∃!W = There does not exist just one W).  In order to avoid an inherent incoherence perhaps there are logically antecedent reasons to affirm ~∃!W (i.e. actuality is logically prior to possibility, which makes possibility somewhat superfluous). Under certain multiverse scenarios different regions of space will exhibit different effective laws of physics (i.e. difference constants, dimensionality, particle content, relation of information, information propagation, etc.) corresponding to different local minima in a landscape of possibilities.[1] 

March 28th, 2012

The Laws of Nature and the Metaphysical Multiverse

Regularity theory (RT) attempts to account for laws in a descriptive manner contra the necessitarian position (NT), which expresses the laws of nature as nomic necessity.  According to the RT the fundamental regularities are brute facts; they neither have nor require an explanation.  Regularity theorists attempt to formulate laws and theories in a language where the connectives are all truth functional.  Thus, each law is expressed with a universal quantifier as in [(x) (Px ⊃ Qx)].[1]  The NT states that there are metaphysical connections of necessity in the world that ground and explain the most fundamental regularities.  Necessitarian theorists usually use the word must to express this connection.[2]  Thus, NT maintains must-statements are not adequately captured by is-statements (must ≠ is, or certain facts are unaccounted for).[3]

The role of counterfactuals serves to make distinctions in regularities.  Concerning the RT and counterfactuals the regularist may claim that laws do not purport what will always occur but what would have occurred if things were different.  NT claims that it is difficult for RT to account for certain counterfactual claims because what happens in the actual world do not themselves imply anything about what would have happened had things been different.[4]  This is only a mere negative assertion on behalf of NT and carries no positive reason to adopt the NT position.  However, RT does have a limited scope in explanation. C.D. Broad argued that the very fact that laws entail counterfactuals is incompatible with regularity theory.[5]  He suggests that counterfactuals are either false or trivially true. If it is now true that Q occurs if P causally precedes Q then the regularist may sufficiently account for past counterfactual claims.  Given the present antecedent condition of P at tn and P implies Q at tn and it was true that P implied Q at tn-1 then using P as an antecedent for R at hypothetical tn-1’ then R is true if P was a sufficient condition R at tn-1’. Thus, RT accounts for past counterfactuals, but this is trivially true.  However, in positive favor of the NT, there is no reason to expect the world to continue to behave in a regular manner as presupposed by the practice of induction.  Consider Robin Collins’ illustration of this point:

February 8th, 2012

Word of the Week Wednesday: Multiverse

The Word of the Week is: Multiverse

Definition: The term to designate the existence of many worlds or universes.  Contrary to just one world, a uni-verse, there are many worlds, a multi-verse.

More about the term: The multiverse is not monolithic but it is modeled after the contemporary understanding of an inflationary model of the beginning of this universe suggesting a plurality of worlds.  Max Tegmark has championed the most prominent versions of the multiverse.[1]  There are four levels of the multiverse.

  1.  Level One:  The level one is, for the most part, more space beyond the observable universe.  So, theoretically, if we were to go to the “edge” of the universe there would be more space.  Having this model as a version of the multiverse may be misleading because there is still only one volume, landscape, or system involved.  A generic prediction of cosmological inflation is an infinite space, which contains Hubble volumes (what we see in our universe) realizing in all conditions—including an identical copy of each of us about 10^10^29 meters away.[2]
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December 31st, 2011

Modal Realism, the Multiverse, and the Problem of Evil

Robert Adams raises and interesting objection to modal realism based on the problem of evil.  He believes

[That] our very strong disapproval of the deliberate actualizing of evils… reflects a belief in the absolutely, and not just relatively, special status of the actual as such.  Indeed, if we ask, “What is wrong with actualizing evils, since they will occur in some other possible world anyways if they don’t occur in this one?”, I doubt that the indexical theory can provide an answer which will be completely satisfying ethically.[1]

Adams’ objection concerning the actualization of evil is irrelevant to a Thomistic version of modal realism (this version to be released in an upcoming paper in the Fall of 2012).  Thomas does not seem to have any problem with the presence of evil.  When discussing Boethius, a philosopher prompts the question, “If there is a God, how comes evil?”  Thomas argues that the question should be reversed—“If there is evil, there is a God.”  For there would be no evil, if the order of goodness were taken away, the privation of which is evil; and this order would not be, if God were not.[2]

December 31st, 2011

An Outline of Tegmark’s Four Levels of the Multiverse

Contemporary physics seem to indicate that there are good reasons, theoretically and physically, for an idea that there is a plurality of worlds.  This concept has come to be understood as the multiverse.  The multiverse is not monolithic but it is modeled after the contemporary understanding of an inflationary model of the beginning of this universe.  Max Tegmark has championed the most prominent versions of the multiverse.[1]  Tegmark has made a four-way distinction.

Tegmark’s first version of the multiverse is called the level one multiverse.  The level one is, for the most part, more space beyond the observable universe.  So, theoretically, if we were to go to the “edge” of the universe there would be more space.  Having this model as a version of the multiverse may be misleading because there is still only one volume, landscape, or system involved.  A generic prediction of cosmological inflation is an infinite space, which contains Hubble volumes (what we see in our universe) realizing in all conditions—including an identical copy of each of us about 10^10^29 meters away.[2]

November 14th, 2011

Top Ten Philosophy, Science, and Theology Podcasts

The following are a list of podcasts that I’ve been following and listening to that have been quite helpful in my philosophical, scientific, and theological studies.  The criteria for consideration are based on 1) quality of content, 2) accurate presentation of the material, 3) constructive and respectful criticism of opposing views, 4) frequency of podcast release, and 5) a broad range of topics/issues discussed.

October 30th, 2011

An Update on my Brief Hiatus

As many of you know I’ve been in the hospital for five days due to some Crohn’s related problems.  I went in last Tuesday with pains that were very similar to my last flare up, which led to me to a major surgery that should have spared me 3-5 years.  Anyways, I’m in recovery mode from this most recent flare up though I’m not completely out of the woods yet.  I’ll be heading up to UVA in the next few weeks to have a procedure/consultation on how to treat this from here on out due to the still unknown spots on my liver.

I hope to be getting to some more blogging in the next week or so here.  I’m halfway finished with my review of Skeptic Magazine’s review of William Lane Craig in their recent issue.  Additionally, I’ll be lecturing in the next few weeks on fine-tuning, the multiverse, and the problem of evil.  I already have these lectures prepared from earlier lectures but I’ve been reading more papers on the multiverse and I’m looking forward to sharing my thoughts on here. Aside from blogging, I’m a little behind in my research for my epistemology course.  I’m hoping to do research on the role of inference in belief formation and belief/paradigm change.  I’m also amidst my graduate research on fine-tuning and the multiverse as well as my research in my Thomas Aquinas course on Thomas’ thoughts on creation and time.

More to come later on, again, sorry for the lack of updates and posts.