December 15th, 2014
November 19-21 was this year’s annual Evangelical Philosophical Society’s conference. I coauthored a paper with Dave Beck of Liberty University. This is the third year in a row I’ve had a paper accepted for presentation at EPS.
Title: “A New and Abductive Thomistic Cosmological Argument”
Abstract: Due to advances in cosmology and theoretical physics the origin of the universe is being relentlessly debated. Nevertheless, whether there is one universe or even an infinite plurality of universes, Thomas Aquinas’ argument for the existence of a first cause from contingency circumvents the debate of temporal beginnings to the universe; such as those that are embedded within the kalam cosmological argument. Tensed, tenseless, dynamic, static, endurantist, and perdurantist theories of time will be irrelevant or be peripheral at best. Physical science as a system will always require further explanation, not mere description, and that explanation will always have to appeal to something outside of itself. This is true for any philosophical and/or theological explanation of science. In this paper we will attempt a consilience of Thomas’ argument from contingency and modern cosmology to show that regardless of whether the universe had a temporal beginning, or what the nature of that beginning might have been, it would still be best explained by a first uncaused cause. We will defend Thomas’ notion of radical contingency and argue against a necessitation understanding of Thomas that is often misattributed to him. This metaphysic will be used as a plausible and defensible abductive cosmological argument, which will appeal to the radical contingency of constituents of the universe, and thus take the form of an argument to the best explanation.
read more »
April 6th, 2013
The fine-tuning argument argues that when physics and the laws of nature are expressed mathematically their values are ever so balanced in a way that permits the existence of life. I’m merely arguing that the universe is finely tuned for the essential building blocks and environments that life requires.
- Given the fine-tuning evidence, a life permitting universe (LPU) is very, very unlikely under the non-existence of a fine-tuner (~FT): that is, P(LPU|~FT & k) ≪ 1.
- Given the fine-tuning evidence, LPU is not unlikely under FT (Fine-Tuner): that is, ~P(LPU|FT & k) ≪ 1.
- Therefore, LPU strongly supports FT over ~FT.
Defense of 1: Given the fine-tuning evidence, a life-permitting universe is very, very unlikely under the non-existence of a fine-tuner.
So what are some of the evidences for fine-tuning?
- Roger Penrose calculates that the odds of the special low entropy condition having come about by chance in the absence of any constraining principles is at least as small as about one in 1010^123.
- Strong Nuclear Force (Strong nuclear force coupling constant, gs = 15)
- +, No hydrogen, an essential element of life
- -, Only hydrogen
read more »
April 5th, 2013
The following argument is an abductive Thomistic cosmological argument from contingency, which I presented at my recent Ratio Christi debate.
- There are contingent constituents to the universe.
- Given the contingent constituents of the universe, the existence of the universe (U) is very, very unlikely under the hypothesis that these constituents are themselves uncaused or self-caused (~Cu): that is, P(U|~Cu & k) ≪ 1.
- Given the contingent constituents of the universe, the existence of the universe is not unlikely under the hypothesis of a first uncaused cause (Cu): that is, ~P(U|Cu & k) ≪ 1.
- Therefore, U strongly supports Cu over ~Cu.
The constituents of the universe include galaxies, planets, stars, cars, humans, leptons, bosons, and other particles. For the constituents of the universe to be uncaused that would mean it is metaphysically necessary. For something to be metaphysically necessary that means that it could not have failed to exist—it exists in every possible world.
For something to be self-caused it must be simultaneously antecedent to itself to produce itself as its own effect. But this contradictory. This would be akin to the ultimate bootstrapping trick.
read more »
January 21st, 2013
I am currently a college student with a strong interest in apologetics. I’ve seen that, by and large, the arguments that apologists use seem to have shown themselves logically sound and hard to disprove despite decades or centuries of them being around. So the theist’s arguments seem to have many strong points. What would be considered the “weak spots” of the apologetic arguments? What arguments might the skeptic use that have the most potential to show that theism is false and that God does not exist?
Thank you. (Shawn)
This is a very interesting question since it seems to me that I’d have to be showing those at the table what my hand is. There are few weak spots in apologetic arguments and I think the two I see most concerning are 1) poor methodology and 2) theoretical implications for parts of the arguments/defense.
Let’s first look at some poor methodology. Most arguments you’ll find in the deductive, inductive, or abductive form. I’m a staunch proponent of abductive arguments. Here’s an example of William Lane Craig’s fine-tuning argument.
read more »