The Anthropic Principle: Was the Universe Made for Us?

Diagram on the dimensionality of spacetime, by Max Tegmark

Posted by Keith Tidman

‘It is clear that the Earth does not move, and that it does not lie elsewhere than at the center [of the universe]’ 

— Aristotle (4th century BCE)

Almost two millennia after Aristotle, in the 16th century, Nicolas Copernicus dared to differ from the revered ‘father of Western philosophy’. Copernicus rattled the world by arguing that the Earth is not at the center of the universe — in a move that to many at the time seemed to knock humankind off its pedestal, and reduce it from exceptionalism to mediocrity. The so-called ‘Copernican principle’ survived, of course, along with the profound disturbance it had evoked for the theologically minded.

Five centuries later, in the early 1970s, an American astrophysicist called Brandon Carter came up with a different model — the ‘anthropic principle’ — that has kept philosophers and scientists debating its significance cosmologically and metaphysically. With some irony, Carter proposed the principle at a symposium to mark Copernicus’s 500th birthday. The anthropic principle points to what has been referred to as the ‘fine-tuning’ of the universe: a list of cosmological qualities (physical constants) whose extraordinarily precise values were essential to making intelligent life possible.

Yet, as Thomas Nagel, the contemporary American philosopher, suggested, even the physical constants known to be required for our universe and an intelligent carbon-based life form need to be properly understood, especially in context of the larger-scaled universe:

‘One doesn’t show that something doesn’t require explanation by pointing out that it is a condition of one’s existence.’

The anthropic principle — its adherence to simplicity, consistency, and elegance notwithstanding — did not of course place Earth back at the center of the universe. As Carter put it, ‘Although our situation is not necessarily central, it is inevitably privileged’. To widen the preceding idea, let’s pose two questions: Did the anthropic principle reestablish humankind’s special place? Was the universe made for us?

First, some definitions. There are several variants of the anthropic principle, as well as differences among definitions, with Carter originally proposing two: the ‘weak anthropic principle’ and the ‘strong anthropic principle’. Of the weak anthropic principle, Carter says:

‘… our location in the universe [he was referring to the age of the universe at which humankind entered the world stage, as well as to location within space] is necessarily privileged to the extent of being compatible with our existence as observers.’

Of the strong anthropic principle, he explained,

‘The universe (and hence the fundamental parameters on which it depends) must be such as to admit the creation of observers within it at some stage’.

Although Carter is credited with coining the term ‘anthropic principle’, others had turned to the subject earlier than him. One in particular among them was the 19th-century German philosopher Arthur Schopenhauer, who presented a model of the world intriguingly similar to the weak anthropic principle. He argued that the world’s existence depended on numerous variables, like temperature and atmosphere, remaining within a very narrow range — presaging Carter’s fuller explanation. Here’s a snapshot of Schopenhauer’s thinking on the matter:

‘If any one of the actually appearing perturbations of [the planets’ course], instead of being gradually balanced by others, continued to increase, the world would soon reach its end’.

That said, some philosophers and scientists have criticized the weak variant as a logical tautology; however, that has not stopped others from discounting the criticism and favoring the weak variant. At the same time, the strong variant is considered problematic in its own way, as it’s difficult to substantiate this variant either philosophically or scientifically. It may be neither provable nor disprovable. However, at their core, both variants (weak and strong) say that our universe is wired to permit an intelligent observer — whether carbon-based or of a different substrate — to appear.

So, what kinds of physical constants — also referred to as ‘cosmic coincidences’ or ‘initial conditions’ — does the anthropic principle point to as ‘fine-tuned’ for a universe like ours, and an intelligent species like ours, to exist? There are many; however, let’s first take just one, to demonstrate significance. If the force of gravitation were slightly weaker, then following the Big Bang matter would have been distributed too fast for galaxies to form. If gravitation were slightly stronger — with the universe expanding even one millionth slower — then the universe would have expanded to its maximum and collapsed in a big crunch before intelligent life would have entered the scene.

Other examples of constants balanced on a razor’s edge have applied to the universe as a whole, to our galaxy, to our solar system, and to our planet. Examples of fine-tuning include the amount of dark matter and dark energy (minimally understood at this time) relative to all the observable lumpy things like galaxies; the ratio of matter and antimatter; mass density and space-energy density; speed of light; galaxy size and shape; our distance from the Milky Way’s center; the sun’s mass and metal content; atmospheric transparency . . . and so forth. These are measured, not just modeled, phenomena.

The theoretical physicist Freeman Dyson poignantly pondered these and the many other ‘coincidences’ and ‘initial conditions’, hinting at an omnipresent cosmic consciousness:

‘As we look out into the universe and identify the many accidents of physics and astronomy that have worked together to our benefit, it is almost as if the universe must in some sense have known we were coming.’

Perhaps as interestingly, humankind is indeed embedded in the universe, able to contemplate itself as an intelligent species; reveal the features and evolution of the universe in which humankind resides as an observer; and ponder our species’ place and purpose in the universe, including our alternative futures.

The metaphysical implications of the anthropic principle are many. One points to agency and design by a supreme being. Some philosophers, like St. Thomas Aquinas (13th century) and later William Paley (18th century), have argued this case. However, some critics of this explanation have called it a ‘God of the gaps’ fallacy — pointing out what’s not yet explained and filling the holes in our knowledge with a supernatural being.

Alternatively, there is the hypothetical multiverse model. Here, there are a multitude of universes each assumed to have its own unique initial conditions and physical laws. And even though not all universes within this model may be amenable to the evolution of advanced intelligent life, it’s assumed that a universe like ours had to be included among the infinite number. Which at least begins to speak to the German philosopher Martin Heidegger's question, ‘Why are there beings at all, instead of nothing?’

Seizing Control of Depression

The Man at the Tiller 1892 | Theo van Rysselbergh

Posted by Simon Thomas

We know the symptoms of depression well. We read of them everywhere: sleeplessness, weight loss, reckless behaviour—and so on. Yet we tend to miss the fact that the foremost of these symptoms is deeply philosophical. 

The philosopher Tim Ruggerio defines depression, above all, as ‘the healthy suspicion that there may not be an aim or point to existence’. This broadly agrees with a symptom which stands at the top of many lists of symptoms: ‘Feelings of helplessness and hopelessness. A bleak outlook.’

Of course, depression does not exist purely on a philosophical plane. It is deeply felt. The symptoms one reads about do not begin to describe the darkness one feels in the throes of a depressive episode. It may be hard to see a way out when, frayed and tattered, one’s feelings start spiralling—and it seems no amount of positive talk can help.

Yet even then, there is one steady pole at the centre. My feelings belong to me. Only I can do something about them. This, too, is deeply philosophical. It is too easy to doubt or despair about something, without recognising that one is despairing over oneself. One needs to own it—and such ownership, in turn, forms the basis for a rational way forward.

The philosopher-theologian Paul Tillich wrote, ‘The acceptance of despair is in itself faith and on the boundary line of the courage to be ... The act of accepting meaninglessness in itself is a meaningful act.’ Here, then, is how this simple philosophical insight helps us further:

• When we recognise that we are dealing with a philosophical struggle, our orientation to the problem may change. The acceptance of depression as my own, far from acceptance in the sense of surrender, becomes the source of the resolve to face the real issue. It is about the search for an all-embracing meaning of life.

• When I see that depression is a philosophical problem, it stands to reason that I shall engage in activities which strengthen me philosophically—which enhance the mind and focus on the good.  Conversely, I shall as far as possible remove myself from the company of those who engage in negativity.

• When I understand that it is too easy to doubt or despair about something, without recognising that I am despairing over myself, I know to set aside some of those thoughts and activities which are merely avoidant, which serve to continue a once-removed despair.

• Knowing that the solution is philosophical, it stands to reason that it does not merely take a day off to apply it. It is a long-term process, and there are no quick fixes. One develops realistic expectations. Similarly, one does not let down one’s guard. Depression is a bit like the devil in Christian belief. It does not take time off. It is not the time for peace until one walks free.

• The ownership of depression represents an acceptance of one's own weakness. Socrates was an avid proponent of the dictum ‘Know thyself.’ To know one's weakness in times of distress is of great help, because if one knows what causes one to fall, one can take steps to stop the downward spiral of one’s mindset.

• Philosophy in all its fullness includes the spiritual and artistic aspects of our personality. Therefore it is valuable to have an appreciation for the spiritual and aesthetic inclinations of the human ‘soul’, and to exercise and expand on them.

Of course, prevention is always better than cure. ‘Guard your heart, for out of it comes the issues of life,’ wrote the wise King Solomon. Watch your life and be careful what and who you allow in your heart. We are always under the influence of something or someone, at some stage of our life. It is sensible to guard what one allows oneself to be influenced by.

This is not intended to diminish the help that medication gives, or wise counsel. Yet philosophy plays a central role in depression, and may present a definitive anchor for the soul, which enables us to find the way back to a place of reason and not to spiral into despair.

The Things | Relations Dichotomy

Yin-Yang by Sandi Baker

Posted by Thomas Scarborough

We humans have always been accused of dichotomous thinking: us and them, good and evil, for and against, and so on.  It pervades our thinking, and our existence.  Such dichotomous thinking is closely familiar to us.  Not a day goes by without someone suggesting that we should be more nuanced, less one-sided, better rounded. 

Yet there is a strange dichotomy which is more pervasive still, which passes all but unnoticed in our lives—and, I shall argue, bedevils all of our thinking.  Within its broader bounds, it goes by hundreds of names—which in itself suggests that it has too much escaped our attentions.  One might describe it as the static and dynamic, or being and becoming—but there are many ways to describe it besides:

• things and relations (Kant)
• objects and arrangements (Wittgenstein)
• the spatial and the temporal
• nouns and verbs
• operators and variables

And so on. It is the simple matter of a world where things exist (we include events, which is things that happen), and exist in a certain relation to one another.  This dichotomy pervades all of our thinking—and this it does at a level which is embedded in our thinking.  As one sees, even in our grammar and our sums, for example.

It all has to do with individuation.  We all begin, apparently, with what William James called ‘one great blooming, buzzing confusion’, then we single out complexes from nature and call them things, entities, objects, even concepts—or events, actions, processes, and so on.  We distinguish these then from the relations between them.

We may have said enough in these few words to identify the presence of this dichotomy at the core of some major philosophical problems, of which just a sample here:

• The fact-value distinction (Hume).  We have fact on the one hand—or statements which contain things—yet do not know on the other how we should arrange them or bring them into relation. 
• The ‘own goal’ of science (Hawking).  By singling out things from nature, and discarding all that (we think) does not belong to them, we create a world of unforeseen side-effects, as we relate them.
• Free will and determinism.  Free will goes to the question of cause and effect, and causation in turn is about the relation between two or more events. This, too, rests on the dichotomy of things and relations.
• The mind-body problem.  This problem may rest on our experience that things exist in the world (or so we feel), while only relations can exist in our networking brain—not things, of course.
• God.  The problem of God’s existence may rest on the notion of causality, since that which is caused is not influenced by God.  Again, causality rests on the distinction between events and their relations.

We may put it this way.  If we did not have this dichotomy of things (and the sort) versus relations, it would be impossible that we should have any of the problems listed above—and many more.  This suggests that we may solve these problems by doing away with one side of the dichotomy—say, things.  This would leave us only with relations, and relations within relations.  It is not an entirely new idea.

Someone might object.  Even if we have no things, objects, entities, events, actions, and so on, we do still have relations—and these relations are governed by scientific law.  But wait a moment.  Without things, there is no scientific law.  At least, not as we know it.

The fact of the dichotomy is presented here simply as food for further thought.  In my view, the dichotomy is artificial and false.  It is a reflection of something in the human fabric that insists first on our individuating things, then on relating them one to the other.  Yet there never has been anything to set this on a firm foundation.

Is Time What It Appears to Be?

Posted by Keith Tidman

Picture credit: Shutterstock via https://www.livescience.com/

“Time itself flows in constant motion, just like a river; for neither the river nor the swift hour can stop its course; but, as wave is pushed on by wave, and as each wave as it comes is both pressed on and itself presses the wave in front, so time both flees and follows and is ever new.” – Ovid

We understand time both metaphorically and poetically as a flowing river — a sequence of discrete but fleeting moments — coursing linearly from an onrushing future to a tangible present to an accumulating past. Yet, might ‘time’ be different than that?

Our instincts embrace this model of flowing time as reality. The metaphor extends to suppose a unidirectional flow, or an ‘arrow of time’. According to this, a rock flies through a window, shattering the glass; the splinters of glass never reform into a whole window. The model serves as a handy approximation for our everyday experiences. Yet what if the metaphor of time as a flowing river does not reflect reality? What then might be an alternative model of time?

What if, rather than the notion of flow, time actually entails only one now. Here, an important distinction must be made, for clarity. That is, time is not a sequence of ‘nows’, as proposed by some, such as the British author of alternative physics, Julian Barbour. That is, time is not points of time — corresponding to frames in a movie reel — with events and experiences following one another as ephemeral moments that if slowed down can be distinguished from one another. But, rather, time entails just one now. A model of time in which the future is an illusion — it doesn’t exist. The future isn’t a predetermined block of about-to-occur happenings or about-to-exist things. Likewise, the past is an illusion — it doesn’t exist. 

As to the past not existing, let me be specific. The point is that what we label as history, cosmology, anthropology, archaeology, evolution, and the like do not compose a separately distinguishable past. Rather, they are chronicles — memories, knowledge, understanding, awareness, information, insight, evidence — that exist only as seamless components of now. The Battle of Hastings did not add to an accumulating past as such; all that we know and have chronicled about the battle exists only in the now. ‘Now’ is the entirety of what exists — all things and all happenings: absent a future and past, absent a beginning and end. As the 4th-century philosopher St. Augustine of Hippo presciently noted:

‘There are three times: a present time about things past, a present time about things present, a present time about things future. The future exists only as expectations, the past exists only as memory, but expectation and memory exist in the present’.

In this construct, what we experience is not the flow of time — not temporal duration, as we are want to envision — but change. All the diverse things and events that compose reality undergo change. Individual things change, as does the bigger landscape of which they are a part and to which they are bound. Critically, without change, we would not experience the illusion of time. And without things and events, we would not perceive change. Indeed, as Ernst Mach, the Austrian philosopher-physicist, pointed out: ‘... time is an abstraction, at which we arrive by means of the changes of things’.

It is change, therefore, that renders the apparition of ‘time’ visible to us — that is, change tricks the mind, making time seem real rather than the illusion it is. The illusion of time nonetheless remains helpful in our everyday lives — brown leaves drop from trees in autumn, we commute to work sipping our coffee, an apple rots under a tree, the embers of a campfire cool down, the newspaper is daily delivered to our front door, a lion chases down a gazelle, an orchestra performs Chopin to rapt audience members, and so forth. These kinds of experiences provide grounds for the illusion of time to exist rather than not to exist.

As Aristotle succinctly put it: ‘there is no time apart from change’. Yet, that said, change is not time. Change and time are often conflated, where change is commonly used as a measurement of the presumed passage (flow) of time. As such, change is more real to the illusion of time’s passing than is our observing the hands of a clock rotate. The movement of a clock’s hands simply marks off arbitrarily conventional units of something we call time; however, the hands’ rotation doesn’t tell us anything about the fundamental nature of time. Change leads to the orthodox illusion of time: a distinctly separate future, present, and past morphing from one to the other. Aristotle professed regarding this measurement aspect of time’s illusion:

‘Whether if soul [mind] did not exist, time would exist or not, is a question that may be asked; for if there cannot be someone to count, there cannot be anything that can be counted.’

So it is change — or more precisely, the neurophysiological perception of change in human consciousness — that deludes us into believing in time as a flowing river: a discrete future flowing into a discrete present flowing into a discrete past. The one-way arrow of time.

In this way, the expression of dynamic change provides our everyday illusion of time, flowing inexorably and eternally, as if to flow over us. The British idealist philosopher J.M.E. McTaggart wrote in the early years of the twentieth century that ‘in all ages the belief in the unreality of time has proved singularly attractive’. He underscored the point:

‘I believe that nothing that exists can be temporal, and that therefore time is unreal.’

To conclude, then: Although the intuitive illusion of time, passing from the future to the present to the past, serves as a convenient construct in our everyday lives at work, at home, and at play, in reality this model of time and its flow is a fiction. Actual experience exists only as a single, seamless ‘now’; there is no separately discrete future or past. Our sense of time’s allegorical flow — indeed, of time itself — arises from the occurrence of ‘change’ in things and events – and is ultimately an illusion.

PP #37 A Celebration of Brashness!

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'Because things don’t appear to be the known thing; they aren’t what they seemed to be neither will they become what they might appear to become.'

Posted by Tessa den Uyl and Martin Cohen

A postcard presentation of Times Square

      

Times Square, New York.

‘The soft rush of taxis by him, and laughter, laughters hoarse as a crow’s, incessant and loud, with the rumble of the subways underneath - and over all, the revolutions of light, the growings and recedings of light - light dividing like pearls - forming and reforming in glittering bars and circles and monstrous grotesque figures cut amazingly on the sky.’

During the so-called Jazz Age, that is the optimistic time after ‘the Great War’ and before the Depression, the rise of Nazism and the Second World War, F. Scott Fitzgerald’s metaphor in his book The Beautiful and Damned, reflects so well the human despair combined with hope.

Acts of freedom and expression intertwine to be heard and noticed, to forget and to distract, to employ, and to  hope... In those days, Times Square must have appeared promising, like a colourful stamp on the continent. But what did its message say?

Ideas about segregation and freedom brought ‘silent’ new horizons and made former distinctions tremble. With all there was to come, in those years of the Roaring Twenties, all the layers that combine to make a society were looking for ‘a voice’ and the call echoed, near and far. 

 

People rather grandly called Times Square the ‘crossroads of the world’ and in those days, that might have well been so. And today, on the edge of the square, the NASDAQ controls a good slice of the world’s wealth and the New York Times does likewise for the world's news. 

 

Yet it is after dark, after the office day has finished, that the square really comes alive. Doubtful is whether that liveliness today, is filled with the same complexity and struggle, or with that necessity literally and symbolically to survive. While it once stimulated a proper voice, ‘light dividing like pearls’, now Times Sqaure embraces more of a homogenisation and offers monstrous grotesque figures cut amazingly out of the sky.

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