We are here debating the Kalam Cosmological Argument from a deistic rather than theistic perspective. Carlo Alvaro is taking the affirmative; Richard Carrier the negative. See our initial entry for all the details, including an index to all entries yet published.

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I. Validity vs. Soundness

Dr. Alvaro now opens by arguing I was incorrect to claim his Kalam argument was invalid. But I affirmed it was valid.[1] Rather, I claimed his argument is unsound. The entire first section of Alvaro’s latest reply is thus moot. It does not respond to my first section. In the formal terms of debate, this is called a drop.[2]

My argument was, instead, with respect to his P1: if it is false that all clowns own lizards then the premise “Clowns own lizards” is false and therefore the conclusion “Therefore Joey [the clown] owns a lizard” is false (or at least unproved). Alvaro cannot rescue this by rewording that premise to “Some clowns own lizards” while leaving the rest the same, because then the argument would become invalid. To then restore validity he would also have to reword the conclusion as “Therefore it is possible Joey owns a lizard.” But “It is possible the universe came into existence by something else” is a failure to prove that it did. All the same can be said of P2.

This is why Alvaro needs to prove his P1 and P2 are (at least probably) always true. If sometimes they are false, then sometimes his conclusion is also false (or unproved). Alvaro has produced no valid or sound syllogism establishing P1 or P2 to be, or even likely to be, logically necessary truths. Which means, so far as we know, they are only contingently true, which entails sometimes (in some possible worlds) they are false. This alone establishes the Kalam is unsound and therefore does not prove its conclusion. 

I do not have to present any further argument or evidence to establish this. It is self-establishing: if the premises are only, so far as we know, contingently true (something else has to produce them), then, so far as we know, sometimes they are false, which means the conclusion is not proved. Just as we have not proved Joey owns a lizard. This is a consequence of Alvaro’s decision to use deductive logic. As I explained, he could attempt an inductive argument (an argument to a probability), but he has not done so (the formula for which is fundamentally different). I await a formal inductive argument. Until I see one, I have to judge the argument as presented.

II. That the Premises Are Also False

I then went on to demonstrate that conditions exist when P1 and P2 are false. So I did not merely demonstrate the Kalam’s premises are unknown to be true and therefore its conclusion is unknown to be true (which alone defeats it). I also demonstrated that P1 and P2 are false: they are false under realizable conditions, which happen to be precisely the conditions that will logically necessarily obtain before anything produced P1 and P2 as governing conditions. Therefore P1 and P2 are false precisely where and when they have to be true in order for P3 to be proved by them. P3, therefore, not only is not proved by these premises, it cannot be proved by these premises.

P1 only obtains when causal systems exist. That is why we do not see it violated in our world: our world is a contingent causal system. But if that system has to be produced by something else (per P1), then that something else cannot already have been governed by P1. Because it produced P1. Therefore, it cannot have obeyed P1. P1 is therefore false in all conditions required for P3 to be proved by it.

P2 only obtains when some contingent thing prevents actual infinite sets. Such as on current physics, where a fingernail is divided by measurement limits (not physical limits) into a finite number of units equal to approximately 10^35th of a meter.[3] That is a contingent fact of the universe produced, and that we therefore now inhabit. But there is no fact (none whatsoever) preventing those 10^35ths of a meter from each spanning an actually infinite number of geometric points (as modern calculus has proved they do). The same can be said of P2.

The only way to negate these conclusions is to prove P1 or P2 (at least probably) logically necessary—and therefore always true, and therefore true even in the conditions I’ve described. Otherwise, these conditions remain not only possible, but will always be realized in the very conditions required for proving P3: before any contingent reality, and hence before P1 and P2, are produced. Before that, logically necessary things can and will still exist (and therefore the alternative is not “absolutely nothing”).[4] But those things will not be governed by P1 or P2. 

Alvaro has not disproved this, or even shown it to be unlikely. It is, to the contrary, self-evident that the state of things before P1 and P2 have been contingently produced will not be governed by P1 and P2.

III. Miscellaneous Problems

Let’s review:

  • I have presented the evidence P1 and P2 are not always true. 
  • None of the evidence Alvaro has presented even pertains to establishing P1 or P2 are always true. Observations in this world are irrelevant to conditions before or outside of it. 
  • None of Alvaro’s claims about infinite sets make them impossible; most aren’t even true.[5] 
  • Alvaro’s claim that accepting P1 and P2 are sometimes false entails accepting that we are brains in a vat. It does not.[6] Alvaro is confusing deductive with inductive arguments. I have already warned him about that. 
  • Alvaro keeps repeating the false dichotomy that either absolutely nothing started reality or a deity did. But there are countless possibilities in between, including substantively causal nothing-states and physical, unintelligent first causes.[again, 4] 
  • Every infinite set can be physically instantiated by a one-to-one substitution of its elements in physical form; therefore every actual infinity is physically possible; and all experts on cosmological science and transfinite mathematics agree with me on this.[7] 
  • I have thus refuted Alvaro’s staircase example, with expert citations.
  • I have thus proved my fingernail example, with expert citations.
  • And I proved Dr. Alvaro’s understanding of Big Bang theory to be thirty years out of date and now false, with expert citations.[8] Pointing this out is not an ad hominem. 

IV. Conclusion

Alvaro’s Kalam cannot prove its conclusion. But that doesn’t mean its conclusion is false. It is always trivially true—there is always a first something (whether ontologically, for a past-infinite timeline,[9] or temporally, for a past-finite timeline [10]). The only question that separates atheists from theists (and deists) is whether that first-order thing is in any way intelligent (rather than just a first or fundamental physical fact).[11] And Alvaro has not even argued his proposed first-order thing is intelligent, and therefore a deity. So atheism remains more probable.[again, 11]

Endnotes

[1] “Dr. Alvaro’s argument is indeed formally valid,” Dr. Carrier’s First Reply to Alvaro.

[2] Glossary of Key Debate Terms, p. 4.

[3] See the Wikipedia entry on Planck Length.

[4] As I’ve explained in What If We Reimagine ‘Nothing’ as a Field-State? and (for more substantial initial conditions) The Argument from Uniformities

[5] See the “fingernail” and “stairway” sections of Dr. Carrier’s Second Reply to Alvaro; and Section III, “Actual Infinities Are Logically Possible,” in Dr. Carrier’s First Reply to Alvaro.

[6] See We Are Probably Not in a Simulation (which contains an example of how to structure an inductive, rather than a deductive, argument).

[7] I already cited the expert literature refuting Alvaro on this in my previous replies. See Note 5 in my First Reply, “See the videos Physicists & Philosophers Debunk the Kalam Cosmological Argument (featuring Penrose, Hawking, and Guth, among others) and Physicists and Philosophers Strike Back; and as well my discussion and citations in the cosmological section of the Carrier-Marshall Debate,” and Note 6 in my Second Reply, “See, for example, Proof of Infinite Geometric Series Formula at Khan Academy. See also the Wikipedia entries for “Fundamental Theorem of Calculus” and “infinitesimal” and this example and these examples.” The former also referenced my demonstrations in the Carrier-Marshall debate regarding A Past Eternal Existence which cited published, peer-reviewed science establishing past-eternal cosmologies, including “[5] Ahmed Farag Ali and Saurya Das, “Cosmology from Quantum Potential,” Physics Letters B 741 (4 February 2015): 276–79” and “[6] C. Wetterich, “Eternal Universe,” Physical Review D 90.4 (2 April 2, 2014),” and “[7] Leonard Susskind, “Was There a Beginning?” MIT Technology Review (27 April 2012); and see, again, the interview with Alex Vilenkin in “Before the Big Bang 9” (particularly timestamp 21:07ff.),” and “[10] Indeed Hilbert’s position [reg. Hilbert’s Hotel] is refuted in the very introduction to the collection of essays Dr. Marshall cites, as co-written by the renowned mathematician and philosopher Hilary Putnam (see Philosophy of Mathematics, pp. 6-11; Hilbert’s essay therein is an old speech from 1925 included only as a foil),” and “[11] Current mathematical opinion: Rudy Rucker, Infinity and the Mind: The Science and Philosophy of the Infinite (1982), e.g., p. 296; N. Ya. Vilenkin, In Search of Infinity (1995), e.g., pp. 50-69; quotation and demonstrations: Bertrand Russell, The Principles of Mathematics, 2nd ed. (1938), esp. § 3.23 and all of § 5 (e.g. 5.43). And I have cited even more than this:

[8] See Ethan Siegel (an actual astrophysicist), “Surprise: The Big Bang Isn’t the Beginning of the Universe Anymore,” Big Think (18 October 2021). That summarizes what I already cited in Note 2 and Note 5 in my First Reply, “[2] See the Wikipedia entry on the Hawking-Penrose Singularity Theorems and see Leah Crane, “Quantum Effects Cloak Impossible Singularities with Black Holes,” New Scientist (2017),” and “[5] See the videos Physicists & Philosophers Debunk the Kalam Cosmological Argument (featuring Penrose, Hawking, and Guth, among others) and Physicists and Philosophers Strike Back.”

[9] See my discussion of this scenario in The Argument to the Ontological Whatsit.

[10] See my discussion of this scenario in The Argument from Uniformities

[11] See Naturalism Is Not an Axiom of the Sciences but a Conclusion of Them and The Argument from Specified Complexity against Supernaturalism. See also, for an example of a complete godless cosmological ontology, Superstring Theory as Metaphysical Atheism.

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Read Dr. Alvaro’s Third Reply to Carrier

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