Showing posts with label Baruch Spinoza. Show all posts
Showing posts with label Baruch Spinoza. Show all posts

Monday 20 July 2020

Miracles: Confirmable, or Chimerical?

Posted by Keith Tidman

Multiplication of the Loaves, by Georges, Mount Athos.
We are often passionately told of claims to experienced miracles, in both the religious and secular worlds. The word ‘miracle’ coming from the Latin mirari, meaning to wonder. But what are these miracles that some people wonder about, and do they happen as told?

Scottish philosopher David Hume, as sceptic on this matter, defined a miracle as ‘a violation of the laws of nature’ — with much else to say on the issue in his An Enquiry Concerning Human Understanding (1748). He proceeded to define the transgression of nature as due to a ‘particular volition of the Deity, or by the interposition of some invisible agent’. Though how much credence might one place in ‘invisible agents’?

Other philosophers, like Denmark’s Søren Kierkegaard in his pseudonymous persona Johannes Climacus, also placed themselves in Hume’s camp on the matter of miracles. Earlier, Dutch philosopher Baruch Spinoza wrote of miracles as events whose source and cause remain unknown to us (Tractatus Theologico-Politicus, 1670). Yet, countless other people around the world, of many religious persuasions, earnestly assert that the entreaty to miracles is one of the cornerstones of their faith. Indeed, some three-fourths of survey respondents indicated they believe in miracles, while nearly half said they have personally experienced or seen a miracle (Princeton Survey Research Associates, 2000; Harris poll, 2013).

One line of reasoning as to whether miracles are credible might start with the definition of miracles, such as transgressions of natural events uncontested convincingly by scientists or other specialists. The sufficiency of proof that a miracle really did occur and was not, deus ex machina, just imagined or stemming from a lack of understanding of the laws underlying nature is a very tall order, as surely it should be.

Purported proof would come from people who affirm they witnessed the event, raising questions about witnesses’ reliability and motives. In this regard, it would be required to eliminate obvious delusions, fraud, optical illusions, distortions, and the like. The testimony of witnesses in such matters is, understandably, often suspect. There are demanding conditions regarding definitions and authentication — such as of ‘natural events’, where scientific hypotheses famously, but for good reason, change to conform to new knowledge acquired through disciplined investigation. These conditions lead many people to dismiss the occurrence of miracles as pragmatically untenable, requiring by extension nothing less than a leap of faith.

But a leap of faith suggests that the alleged miracle happened through the interposition of a supernatural power, like a god or other transcendent, creative force of origin. This notion of an original source gives rise, I argue, to various problematic aspects to weigh.

One might wonder, for example, why a god would have created the cosmos to conform to what by all measures is a finely grained set of natural laws regarding cosmic reality, only later to decide, on rare occasion, to intervene. That is, where a god suspends or alters original laws in order to allow miracles. The assumption being that cosmic laws encompass all physical things, forces, and the interactions among them. So, a god choosing not to let select original laws remain in equilibrium, uninterrupted, seems selective — incongruously so, given theistic presumptions about a transcendent power’s omniscience and omnipotence and omniwisdom.

One wonders, thereby, what’s so peculiarly special about humankind to deserve to receive miracles — symbolic gestures, some say. Additionally, one might reasonably ponder why it was necessary for a god to turn to the device of miracles in order for people to extract signals regarding purported divine intent.

One might also wonder, in this theistic context, whether something was wrong with the suspended law to begin with, to necessitate suspension. That is, perhaps it is reasonable to conclude from miracles-based change that some identified law is not, as might have been supposed, inalterably good in all circumstances, for all eternity. Or, instead, maybe nothing was in fact defective in the original natural law, after all, there having been merely an erroneous read of what was really going on and why. A rationale, thereby, for alleged miracles — and the imagined compelling reasons to interfere in the cosmos — to appear disputable and nebulous.

The presumptive notion of ‘god in the gaps’ seems tenuously to pertain here, where a god is invoked to fill the gaps in human knowledge — what is not yet known at some point in history — and thus by extension allows for miracles to substitute for what reason and confirmable empirical evidence might otherwise and eventually tell us.

As Voltaire further ventured, ‘It is . . . impious to ascribe miracles to God; they would indicate a lack of forethought, or of power, or both’ (Philosophical Dictionary, 1764). Yet, unsurprisingly, contentions like Voltaire’s aren’t definitive as a closing chapter to the accounting. There’s another facet to the discussion that we need to get at — a nonreligious aspect.

In a secular setting, the list of problematic considerations regarding miracles doesn’t grow easier to resolve. The challenges remain knotty. A reasonable assumption, in this irreligious context, is that the cosmos was not created by a god, but rather was self-caused (causa sui). In this model, there were no ‘prior’ events pointing to the cosmos’s lineage. A cosmos that possesses integrally within itself a complete explanation for its existence. Or, a cosmos that has no beginning — a boundless construct having existed infinitely.

One might wonder whether a cosmos’s existence is the default, stemming from the cosmological contention that ‘nothingness’ cannot exist, implying no beginning or end. One might further ponder how such a cosmos — in the absence of a transcendent force powerful enough to tinker with it — might temporarily suspend or alter a natural law in order to accommodate the appearance of a happening identifiable as a miracle. I propose there would be no mechanism to cause such an alteration to the cosmic fabric to happen. On those bases, it may seem there’s no logical reason for (no possibility of) miracles. Indeed, the scientific method does itself call for further examining what may have been considered a natural law whenever there are repeated exceptions or contradictions to it, rather than assuming that a miracle is recurring.

Hume proclaimed that ‘no testimony is sufficient to establish a miracle’; centuries earlier, Augustine of Hippo articulated a third, and broader take on the subject. He pointedly asked, ‘Is not the universe itself a miracle?’ (The City of God, 426 AD). Here, one might reasonably interpret ‘a miracle’ as synonymous for a less emotionally charged, temporal superlative like ‘remarkable’. I suspect most of us agree that our vast, roiling cosmos is indeed a marvel, though debatably not necessitating an originating spiritual framework like Augustine’s. 

No matter how supposed miracles are perceived, internalised, and retold, the critical issue of what can or cannot be confirmed dovetails to an assessment of the ‘knowledge’ in hand: what one knows, how one knows it, and with what level of certainty one knows it. So much of reality boils down to probabilities as the measuring stick; the evidence for miracles is no exception. If we’re left with only gossamer-thin substantiation, or no truly credible substantiation, or no realistically potential path to substantiation — which appears the case — claims of miracles may, I offer, be dismissed as improbable or even phantasmal.

Monday 29 October 2018

How Life Has Value, Even Absent Overarching Purpose

Wherein lies value?
Posted by Keith Tidman

Among the most-common questions from philosophy is, ‘What is the purpose of life?’ After all, as Plato pithily said, humans are ‘beings in search of meaning’. But what might be the real reason for the question about the purpose of life? I suggest that what fundamentally lurks behind this age-old head-scratcher is an alternative query: Might not life still have value, even if there is no sublimely overarching purpose? So, instead, let’s start with ‘purpose’ and only then work our way to ‘value’.

Is an individual's existence best understood scientifically — more particularly, in biological terms? The purpose of biological life, in strictly scientific terms, might be reduced to survival and passing along genes — to propagate, for continuation of the familial line and (largely unconsciously) the species. More broadly, scientists have typically steered clear of deducing ‘higher purpose’ and are more comfortable restricting themselves to explanations of empirically, rationally grounded physical models — however inspiring those peeks into presumed reality may be — that relate to the ‘what’ and ‘how’ of existence. The list is familiar:
  • the heliocentric construct of Copernicus and the mechanistic universes of René Descartes and Isaac Newton
  • the Darwinian theories of evolution and natural selection
  • the laws of thermodynamics and the theory of general relativity of Albert Einstein 
  • the quantum mechanics of Niels Bohr, Max Planck, Werner Heisenberg, and Erwin Schrödinger. 
But grand as these theories are, they still don’t provide us with purpose.

Rather, such theories focus on better understanding the emergence and evolution of the cosmos and humankind, in all their wonder and complexity. The (not uncommonly murky) initial conditions and necessary parameters to make intelligent life possible add a challenge to relying on conclusions from the models. As to this point about believability and deductions drawn, David Hume weighed in during the 18th century, advising,

             ‘A wise man proportions his belief to the evidence’.

Meanwhile, modern physics doesn’t yet rule in or rule out some transcendent, otherworldly dimension of the universe — disproof is always tough, as we know, and thus the problem is perhaps unanswerable — but the physical–spiritual dualism implied by such an ethereal dimension is extraordinarily questionable. Yet one cannot deduce meaning or purpose, exceptional or ordinary, simply from mere wonder and complexity; the latter are not enough. Suggested social science insights — about such things as interactions among people, examining behaviours and means to optimise social constructs — arguably add only a pixel here and a pixel there to the larger picture of life’s quintessential meaning.

Religious belief — from the perspectives of revelation, enlightenment, and doctrine — is an obvious place to turn to next in this discussion. Theists start with a conviciton that God exists — and conclude that it was God who therefore planted the human species amidst the rest of His creation of the vast universe. In this way, God grants humankind an exalted overarching purpose. In no-nonsense fashion, the 17th-century Dutch philosopher Baruch Spinoza took the point to another declarative level, writing:
‘Whatever is, is in God, and without God nothing can be, or be conceived’. 
This kind of presumed God-given plan or purpose seems to instill in humankind an inspirational level of exceptionalism. This exceptionalism in turn leads human beings toward such grand purposes as undiminished love toward and worship of God, fruitful procreation, and dominion over the Earth (with all the environmental repercussions of that dominion), among other things. These purposes include an implied contract of adding value to the world, within one’s abilities, as prescribed by religious tenets.

One takeaway may be a comfortable feeling that humankind, and each member of our species, has meaning — and, in a soul-based model, a roadmap for redemption, perhaps to an eternal afterlife. As to that, in the mid-20th century, Jean-Paul Sartre wrote in characteristically unsparing fashion:
‘Life has no meaning the moment you lose the illusion of being eternal’. 
Universes constructed around a belief in God, thereby, attempt to allay the dread of mortality and the terror of dying and of death. Yet, even where God is the prime mover of everything, is it unreasonable to conceive of humankind as perhaps still lacking any lofty purpose, after all? Might, for example, humankind share the universe with other brainy species on our own planet — or even much brainier ones cosmically farther flung?

Because if humankind has no majestically overarching purpose — or put another way, even if existentially it might not materially matter to the cosmos if the human species happened to tip into extinction — we can, crucially, still have value. Ultimately value, not exceptionalism or eternity, is what matters. There’s an important difference between ‘purpose’ — an exalted reason that soars orders of magnitude above ordinary explanations of why we’re riding the rollercoaster of creation — and value, which for an individual might only need a benevolent role in continuously improving the lot of humankind, or perhaps other animals and the ecosphere. It may come through empathically good acts without the expectation of any manner of reward. Socrates hewed close to those principles, succinctly pointing out,

            ‘Not life, but a good life, is to be chiefly valued’.

Value, then, is anchored to our serving as playwrights scribbling, if you will, on pieces of paper how our individual, familial, community, and global destiny unfolds into the future. And what the quality of that future is, writ large. At minimum, we have value based on humanistic grounds: people striving for natural, reciprocal connections, to achieve hope and a range of benefits — the well-being of all — and disposing of conceits to instead embrace our interdependence in order not only to survive but, better, to thrive. This defines the intrinsic nature of ‘value’; and perhaps it is to this that we owe our humanity.


Monday 24 September 2018

Why Is There Something Rather Than Nothing?

For scientists, space is not empty but full of quantum energy
Posted by Keith Tidman

Gottfried Wilhelm Leibniz introduced this inquiry more than three hundred years ago, saying, ‘The first question that should rightly be asked is, “Why is there something rather than nothing?”’ Since then, many philosophers and scientists have likewise pondered this question. Perhaps the most famous restatement of it came in 1929 when the German philosopher, Martin Heidegger, placed it at the heart of his book What Is Metaphysics?: ‘Why are there beings at all, and why not rather nothing?’

Of course, many people around the world turn to a god as a sufficient reason (explanation) for the universe’s existence. Aristotle believed, as did his forerunner Heraclitus, that the world was mutable — everything undergoing perpetual change — which he characterised as movement. He argued that there was a sequence of predecessor causes that led back deep into the past, until reaching an unmoved mover, or Prime Mover (God). An eternal, immaterial, unchanging god exists necessarily, Aristotle believed, itself independent of cause and change.

In the 13th century Saint Thomas Aquinas, a Christian friar, advanced this so-called cosmological view of universal beginnings, likewise perceiving God as the First Cause. Leibniz, in fact, was only proposing something similar, with his Contingency Argument, in the 17th century:

‘The sufficient reason [for the existence of the universe] which needs not further reason must be outside of this series of contingent things and is found in a substance which . . . is a necessary being bearing the reason for its existence within itself. . . .  This final reason for things is called God’ — Leibniz, The Principles of Nature and Grace

However, evoking God as the prime mover or first cause or noncontingent being — arbitrarily, on a priori rather than empirical grounds — does not inescapably make it so. Far from it. The common counterargument maintains that a god correspondingly raises the question that, if a god exists — has a presence — what was its cause? Assuming, that is, that any thing — ‘nothing’ being the sole exception — must have a cause. So we are still left with the question, famously posed by the theoretical physicist Stephen Hawking, ‘What is it that breathes fire into the equations and makes a universe for them to describe?’ To posit the existence of a god does not, as such, get around the ‘hard problem’: why there is a universe at all, not just why our universe is the way it is.



Some go so far as to say that nothingness is unstable, hence again impossible.


 
Science has not fared much better in this challenge. The British mathematician and philosopher Bertrand Russell ended up merely declaring in 1948, ‘I should say that the universe is just there, and that’s all’. A ‘brute fact’, as some have called it. Many scientists have embraced similar sentiments: concluding that ‘something’ was inevitable, and that ‘nothingness’ would be impossible. Some go so far as to say that nothingness is unstable, hence again impossible. But these are difficult positions to support unquestionally, given that, as with many scientific and philosophical predecessors and contemporaries, they do not adequately explain why and how. This was, for example, the outlook of Baruch Spinoza, the 17th-century Dutch philosopher who maintained that the universe (with its innumerable initial conditions and subsequent properties) had to exist. Leaping forward to the 20th century, Albert Einstein, himself an admirer of Spinoza’s philosophy, seemed to concur.

Quantum mechanics poses an interesting illustration of the science debate, informing us that empty space is not really empty — not in any absolute sense, anyway. Even what we might consider the most perfect vacuum is actually filled by churning virtual particles — quantum fluctuations — that almost instantaneously flit in and out of existence. Some theoretical physicists have suggested that this so-called ‘quantum vacuum’ is as close to nothingness as we might get. But quantum fluctuations do not equate to nothingness; they are not some modern-day-science equivalent of the non-contingent Prime Mover discussed above. Rather, no matter however flitting and insubstantial, virtual quantum particles are still something.

It is therefore reasonable to inquire into the necessary origins of these quantum fluctuations — an inquiry that requires us to return to an Aristotelian-like chain of causes upon causes, traceable back in time. The notion of a supposed quantum vacuum still doesn’t get us to what might have garnered something from nothing. Hence, the hypothesis that there has always been something — that the quantum vacuum was the universe’s nursery — peels away as an unsupportable claim. Meanwhile, other scientific hypotheses, such as string theory, bid to take the place of Prime Mover. At the heart of the theory is the hypothesis that the fundamental particles of physics are not really ‘points’ as such but rather differently vibrating energy ‘strings’ existing in many more than the familiar dimensions of space-time. Yet these strings, too, do not get us over the hump of something in place of nothing; strings are still ‘something’, whose origins (causes) would beg to be explained.

In addressing these questions, we are not talking about something emerging from nothing, as nothingness by definition would preclude the initial conditions required for the emergence of a universe. Also, ‘nothingness’ is not the mere absence (or opposite) of something; rather, it is possible to regard ‘nothingness’ as theoretically having been just as possible as ‘something’. In light of such modern-day challenges in both science and philosophy, Lugdwig Wittgenstein was at least partially right in saying, early in the 20th century (Tractatus Logico-Philosophicus, section 6.4 on what he calls ‘the mystical’), that the real mystery was, ‘Not how the world is . . . but that it is’.