"Why is there something and not nothing?" A bit more on the question

I thought it might be useful to offer a few clarifying remarks concerning the philosophical version of the “cosmological question,” and the notion that this question operates (as I claimed in my recent “Science vs. Philosophy?” post) as a wellspring of belief in the transcendent.


First of all, as I noted in that earlier post, Leibniz put the question as follows: “Why is there something rather than nothing?” By “nothing,” here, Leibniz meant absolutely nothing, not even empty space, and certainly not empty space governed by empirically discovered laws that regulate the behavior of that empty space. By most standards of “somethingness” that I know of, to have rule-governed capacities is to be something. (In fact, as I understand one of Hermann Lotze's arguments, that is what makes something something).

Leibniz’s question, in other words, isn’t a question about why there is this kind of something (a vacuum governed by certain laws) as opposed to that sort of something (an expanding universe of quantum particles organized in a rich diversity of ways and governed by a set of basic constants). Leibniz is asking why there is anything at all.

In my earlier post I said that this “cosmological philosophical question” (borrowing the useful designator Burk offers in one comment) operates as a source of belief in the transcendent. I want to clarify what I mean by that. “The transcendent” refers to some reality beyond the empirical world but fundamental to determining its character, much in the way that the reality into which Neo awakens (in “The Matrix” movies) is a reality beyond the virtual reality matrix but fundamental to shaping the latter’s character. Put simply, “the transcendent” refers to a level of reality in principle beyond the scope of scientific inquiry but which, if it existed, would serve as the ultimate “explainer” of the reality that falls within the scope of science.

My claim is that the cosmological philosophical question (hereafter CPQ) helps give rise to belief in such a realm. Note, however, that belief in the existence of such a realm is distinct from any beliefs about what that realm of reality is like (e.g., whether or not it is personal or impersonal, monistic or dualistic, etc.), and also from any beliefs about the scope or lack thereof of human access to such a realm (e.g., whether introspective reflection on the content of consciousness can give us some insight into this realm that outward, disinterested examination of empirical objects cannot). To say that the CPQ gives rise to belief in the transcendent is not to say that it offers any particular answers to these other questions.

But even if belief in the transcendent is divorced from any beliefs about the transcendent or any beliefs about our ability to get in touch with the transcendent, it doesn’t follow that such belief is insignificant. At a minimum, such belief implies that there are important outer limits to what science can discover about reality, even in principle. If we were to imagine that science had completed its work (which it never will), discovering and understanding everything that it is possible to discover and understand about reality through broadly scientific means, belief in the transcendent entails that the most fundamental truths about reality would remain unknown.

To be clear, believing that there are orders of reality that fall outside the scope of scientific inquiry is not to say that, within its scope of inquiry, science shouldn’t be trusted (or shouldn’t be regarded as the go-to method for gaining knowledge). It isn’t to hold that some purported revelation from a purportedly transcendent source should be trusted above the direct evidence of sustained scientific inquiry. I think much scientific hostility to the postulate that there is a transcendent realm is rooted in these sorts of confusions about what positing the transcendent does (and does not) involve.

But at least some of the hostility is surely rooted in something that the postulation of the transcendent does imply—namely, that no matter how vital and amazing science is in furthering our knowledge, it cannot plumb the deepest and most important mysteries of existence. Whatever science learns, and however important or useful its teachings, the ultimate nature of reality will remain beyond its grasp. At best, some scientists bristle at this suggestion because they don’t want to place a priori philosophical limits on science’s reach. At worst, they want to believe that they are part of the ultimate project of unearthing the deepest mysteries that there are, and belief in the transcendent undercuts that narrative.

In any event, my claim in the "Science vs. Philosophy?" post was that the CPQ operates as a basis for belief in the transcendent. Now this is different from saying that the CPQ operates as a good basis for such belief, but as it happens I also think that the CPQ can serve as the starting point for a powerful philosophical argument for the transcendent—a point I make at length in Chapter 6 of Is God a Delusion?

I won’t repeat what I argued there. Instead, I will simply summarize the heart of the argument, which is this: In order for the CPQ to have an answer (in order for there to be a reason why there is something rather than nothing, as opposed to the existence of the universe being a brute fact), there must exist something that possesses the property of self-existence, that is, something whose nature renders it such that it could not have failed to exist—something whose nature sufficiently explains its own existence.

This is a property that, as Hume argued, is inconceivable of anything in the empirical realm (or any empirical entity we could hypothetically construct with our imaginations). His principle, in effect, is that the formal nature of empirical reality is such that anything which can be conceived to exist can also be conceived not to exist. And so, no empirical thing we can conceive would be such that it’s empirical nature necessitated its existence.

And so, if the CPQ is to have an answer, we must posit something beyond the empirical—something transcendent. And if the transcendent is posited to answer the CPQ, it is posited as the ultimate explanation for the existence of things.

Of course, we could say that the CPQ lacks an answer. We could say that there is no reason why there is something and not nothing—that, instead, it’s just a brute fact. That’s what Bertrand Russell did. But could a reasonable person reasonably disagree with Russell? Could a reasonable person believe in the Principle of Sufficient Reason—that everything admits of an explanation, even if we can’t discern what it is? If so, a reasonable person, reflecting on the CPQ, would come away believing in the transcendent.

I don’t think this “cosmological argument” is irresistible. I don’t, in other words, regard it as a proof of the transcendent. My own view is that this argument, like many other philosophical arguments, shows why it is that a reasonable person can reasonably believe in the transcendent—even if that does not preclude the possibility that other reasonable people might reasonably believe otherwise.

Now it is important to be clear that certain questions superficially similar to CPQ do not serve as any sort of basis—good or otherwise—for believing in the transcendent. That a vacuum is inherently unstable (given certain empirically discovered laws regulating vacuums) may explain why a vacuum in a universe governed by the basic laws that prevail in this universe would resolve into more interesting “stuff”—and thus answer the question of why our universe is a universe full of protons and electrons and stars and planets rather than an endless void. But while that might answer an interesting and important question in physics without invoking anything beyond what is accessible to physics, it does not answer the CPQ.

For the reasons I've given here and elsewhere, I’m pretty sure that if the CPQ has an answer—if there is a reason why there is anything at all—that answer in principle can’t be discovered by physics or any of the other sciences (although I’m open to being proved wrong about this).

There are some (and Krauss seems to be one of them, at least given some remarks he makes in his recent apology about his earlier dismissiveness towards philosophy) who, on the basis of this fact, are dismissive of the CPQ, regarding it as an absurd or meaningless question—as if a condition for a question’s significance is its capacity to motivate a scientific inquiry. But I am very skeptical of such dismissals. If you were a physicist trying to do physics and you confronted a question that wasn’t a question that physics could begin to address, then you might not as a physicist be interested in the question. But it doesn’t follow that no human being, as a human being, should be interested in the question. Nor does it follow that the question is incoherent—unless you adopt a logical positivist philosophy of language, which I’d advise against on the grounds that doing so renders the logical positivist philosophy of language incoherent.

In any event, my own conclusion is that the question can be addressed to some extent philosophically, insofar as it can be shown that on the assumption that the CPQ admits of an answer, we are forced to the conclusion that the answer is something that transcends the reality we encounter empirically.

Whether philosophical arguments can take us any further than reasonable belief in a “something-I-know-not-what” beyond the limits of science—that is a much more challenging question that I won’t explore here (and didn’t explore in Is God a Delusion?). What I will say is that people who (reasonably, in my judgment) believe in the transcendent can and do and should speculate about it. And these speculations are susceptible to philosophical scrutiny, in the sense that philosophers can assess such things as their internal coherence, their consistency with what we know about the empirical world (since certain views about the transcendent have implications for what the empirical world would look like), and their pragmatic implications for human life.

Philosophers can and should engage in such assessments, since such assessments help us to discern what could be true and what can’t be true about a transcendent reality that defies the grasp of specific human knowledge. Knowing what could and could not be the case about X is better than nothing, even if we cannot know precisely what is the case about X. And I think philosophers can and should address questions such as whether there are conditions under which it is objectionable to live one’s life as if one or another speculative vision about the transcendent were true—and whether there are conditions under which doing so is not objectionable.