ANNOUNCEMENT: Conference: The Infinity of God

Thursday, August 8 2013 - Sunday, August 11 2013
Faculty of Theology, Ruhr-Universität Bochum
Bochum, Germany

Sponsor(s):

DFG


All speakers:
Franz Krainer, Ruhr-University Bochum
William Carroll, Oxford University
Christina Schneider. LMU Munich
Ruben Schneider, Munich School of Philosophy
Georg Essen, Ruhr University Bochum
Christian Tapp, Ruhr-Universität Bochum
Philip Clayton, Claremont Graduate University
Kenneth Perszyk, Victoria University of Wellington
Richard Swinburne, Oxford University
Benedikt Göcke, Ruhr University Bochum
Paul Helm, Regent’s Park College
Anna Ijjas, Harvard University
Brian Leftow, Oxford University
William Hasker. Huntingdon College
Kenneth Pearce, University of Southern California
Thomas Schärtl, Universität Augsburg
Bernhard Lang, Universität-GH Paderborn

Organisers:

Benedikt Göcke, Ruhr University Bochum
Christian Tapp, Ruhr-Universität Bochum

Topic areas :

Philosophy of Religion

Talks at this conference


Details here.

Pacific APA

I'll be at the Pacific APA on Thursday. Shoot me an email if you'd like to grab a beer.

A Slew of Excellent New Papers from Schellenberg

  1. J. L. Schellenberg (forthcoming). A New Logical Problem of Evil. In Justin McBrayer & Daniel Howard-Snyder (eds.), Companion to the Problem of Evil. Blackwell. (*Latest version. Recently revised*)
    J. L. Schellenberg (forthcoming). God for All Time: From Theism to Ultimism. In Andrei Buckareff Yujin Nagasawa (ed.), Alternative Conceptions of God. Oxford University Press.
  2. J. L. Schellenberg (forthcoming). How to Make Faith a Virtue. In Timothy O'Connor Laura Goins (ed.), Religious Faith and Intellectual Virtue. Oxford University Press.
  3. J. L. Schellenberg (forthcoming). Religious Diversity and Religious Skepticism. In Kevin Schilbrack (ed.), The Blackwell Companion to Religious Diversity. Wiley-Blackwell.
  4. J. L. Schellenberg (forthcoming). Skeptical Theism and Skeptical Atheism. In Justin McBrayer Trent Dougherty (ed.), Skeptical Theism: New Essays. Oxford University Press.
  5. The links to the papers above are available via PhilPapers, but they are also available (with many others) via direct link at Schellenberg's website.

Reconstructing Craig's New Scientific Argument for the Beginning of the Universe

I'm trying to get clear on Craig's new a posteriori argument for the beginning of the universe, and I'd be grateful for any constructive feedback. As far as I can make out, the core of his argument can be expressed as follows:

1. The Borde-Guth-Vilenkin Theorem (BGV) is true.
2. If the BGV is true, then each universe or multiverse which has, on average, been expanding throughout its history has a beginning to its expansion. (implication of BGV)
3. Each universe or multiverse has, on average, been expanding throughout its history.
4. Therefore, each universe or multiverse has a beginning to its expansion.
5. Each universe or multiverse that has a beginning to its expansion has a beginning of its existence.
6. If each universe or multiverse has a beginning of its existence, then there is a beginning to the existence of all physical reality -- including all universes and multiverses there may be.
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7. Therefore, there is a beginning to the existence of all physical reality.

Some questions and comments:

(i) I'm assuming (1) is the consensus view among the relevant scientists, and that (2) just falls out of (1). 

(ii) I have no idea why we're supposed to accept (3).

(iii) I'm not entirely sure what the justification for (5) is supposed to be, but I think it's roughly as follows: (a) The initial state I of any given expanding universe U must be one of quiescence or activity. But (b) if I was a state of quiescence, then it would've remained in that state forever, as (c) there would be no way for an event to begin within U (which contradicts the assumption that it's expanding). On the other hand, (d) if the initial state of U was one of activity, then the expansion of U would have had an infinite amount of time to start its expansion phase I, in which case (e) it would've been expanding for eternity (which contradicts the assumption that U's expansion had a beginning). Therefore, (f) any universe that has a beginning of its expansion has a beginning of its existence.

As I said, I'm not sure if that's Craig's reasoning, but if it is, it seems pretty bad. One problem with it is that (c) doesn't entail (b). For even if the initial state of a universe were quiescent, and even if there is no way for an event to begin from within a quiescent universe, it doesn't follow that there's no way for a physical entity or event outside of a quiescent universe to initiate activity within it. 

Furthermore, the best way I know of to support the inference from (d) to (e) ("if x can be completed in an infinite stretch of time S, then x must (or at least will) be completed within S") is Craig's a priori "immortal counter" argument, but that argument has an undercutting defeater.

Unfortunately, I don't know of another way to support (5), but perhaps there is one, and Craig has stated it somewhere (it may be that it's in his chapter in The Blackwell Companion to Natural Theology, and I missed it, though. It's been a while since I've read it, so it's quite possible that that's what's going on). If so, I'd be grateful for help on this.

(iv) Without independent justification, the inference from the antecedent to the consequent in (6) is an instance of a quantifier shift fallacy or the fallacy of composition. Thus, grant that each universe and multiverse is an inflating structure, and grant that each particular inflating universe or multiverse must have a beginning. It doesn't follow from these claims that the set of all such structures must have a beginning (let alone all physical reality. Note that the argument assumes the two are co-extensive). So, for example, it's epistemically possible that each inflating universe or multiverse has a beginning, but that there is a beginningless series of such universes or multiverses. It's also epistemically possible that there is some non-inflationary structure that's eternal (say, some sort of field structure), from which a finite or infinite number of inflating universes or multiverses arise.

Are such structures scientifically acceptable? Given Craig's ultimate argumentative aims, that's neither here nor there[1]. For Craig's ultimate aim is to establish God as the originating cause of all other concrete entities that exist.[2] As such, it's not enough for Craig to rule out all scientifically acceptable rival hypotheses of the origin of the universe besides theism; he must also rule out all metaphysically acceptable rival hypotheses of the origin of the universe besides theism. Perhaps, though, Craig has other arguments for (5) that can achieve this stricter aim. If so, I'd be grateful to learn what they are. 

(v) Assume my reconstruction of Craig's argument adequately captures Craig's reasoning and that all the concerns raised above can be answered. The argument is nonetheless undercut by the following G.E. Moore Shift argument:

1. If all of premises 1-6 are true, then there is a beginning to the existence of all physical reality.
2. There is not a beginning to the existence of all physical reality.
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3. Therefore, not all of premises 1-6 are true. 

The argument's valid, and (1) is true in virtue of the validity of my reconstruction of Craig's argument. Furthermore, (2) is justified in virtue of our a priori and a posteriori evidence for the following version of the principle of material causality (PMC): every concrete object (or aggregate thereof) that begins to exist has a material cause of its existence (i.e., it's made from pre-existing stuff, whether material or immaterial). So unless we allow that either (a) physical reality is made out of God's being, (b) physical reality is ultimately made out of some eternal stuff distinct from God, or (c) things that begin to exist but aren't preceded by other events don't need causes (all of which Craig is committed to rejecting), PMC should push one to accept (2). 

Now here's the rub: if the G.E. Moore Shift argument is sound, then Craig's argument is unsound. And if Craig's argument is sound, then the G.E. Moore Shift argument is unsound. Unfortunately, The premises in the latter have at least as much going for them as those in Craig's argument. And if that's right, then the epistemic force of each cancels out that of the other, in which case Craig's argument is subject to an undercutting defeater.

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[1] Of course it goes without saying that Craig's posited immaterial, tri-personal creator-out-of-nothing is scientifically unacceptable.
[2] Indeed, Craig also wants to argue that God is the cause of all abstract objects as well, but that's a topic for another day.

Morriston's Latest Reply to Craig

Here.  I find Morriston's "future praises" argument fascinating. However, it's easy to lose sight of the fact that Morriston has a slew of other papers in which he has offered undercutting defeaters for every last one of Craig's philosophical (i.e., a priori) arguments against the existence and traversability of actual infinites. Also worth noting is that many of these papers are over a decade old, and, to date, Craig has failed to adequately address even a single one of them. To his credit, though, Craig has attempted to reply to a number of Morriston's other criticisms of the kalam cosmological argument (e.g., Morriston's criticisms of the causal premise, of the a posteriori (i.e., empirical) arguments for a finite past, and of the grounds for inferring that the cause of the beginning of the universe is a personal agent). I leave it to the reader to decide if any of those replies are successful.

Alimi's New Paper on the Problem of Divine Domination

Alimi, Toni. Divine domination . Religious Studies (2025), 1–19. doi:10.1017/S0034412525100917 Abstract: This article develops the problem ...