Brian Cox: Emergence. A Night of Snowflakes, Galaxies and Cosmic Humility
I’d been waiting almost a year for this talk.
And it didn't disappoint.
As the 2,500-strong audience filtered in from the arena
bars, foyers and cloakrooms, there was a palpable buzz in the air. This wasn't
just another evening lecture. It felt more like the opening night of a major
theatre production, albeit one about quantum mechanics, galaxies and the nature
of reality itself.
Below are my thoughts on the evening, along with a summary
of some of the ideas that stayed with me long after the lights came up.
A Quick Show Overview
Emergence is a two-hour live science and cosmology
show (plus interval) exploring how extraordinary complexity emerges from
remarkably simple beginnings. A heady mixture of cosmology, physics, biology,
philosophy and a dash of history, all wrapped in stunning visuals projected
across an enormous ultra-wide screen. Real-time imagery from the ISS sat
alongside breathtaking NASA footage and the latest telescope images. Add a
powerful musical score and the whole thing felt part science lecture, part
cinematic experience.
At times it was genuinely awe-inspiring.
From Snowflakes to the Structure of the Universe
The central theme of the evening was deceptively simple:
How do beautiful, complex structures emerge from a
universe governed by relatively simple laws?
Professor Cox launched straight into this question with a
stunning visual sequence. We zoomed into a snowy Prague street in 1610,
crossing a bridge during a winter storm. It was an opening that immediately
pulled the audience into the story.
The entire show was framed around a question posed by
Johannes Kepler more than 400 years ago.
Why do snowflakes almost always exhibit six-fold
symmetry?
Why six corners? Why not five or seven? Why order instead
of chaos?
What initially sounds like a curious observation about
winter weather becomes something much bigger. It's really a question about why
the universe contains patterns at all.
Cox discussed Kepler's 1611 essay The Six-Cornered
Snowflake, explaining how snowflake geometry isn't an accident. The answer
lies deep within the structure of water itself. Apparently, the angle between
hydrogen atoms in a water molecule is around 105 degrees. That microscopic
arrangement ultimately dictates the familiar hexagonal pattern of snowflakes.
Who knew?
The striking idea was that the same laws shaping tiny ice
crystals also underpin structures across the cosmos. Nature seems to rhyme with
itself. Patterns repeat across vastly different scales, from snowflakes
drifting through Earth's atmosphere to spiral galaxies rotating hundreds of
millions of light years away.
A Journey Inwards
Backed by superb visual effects, Cox then steered us into
the world of reductionism.
Imagine dismantling a clock to understand how it works.
Only instead of gears and springs, we were stripping a
snowflake apart.
First molecules. Then atoms. Then electrons and quarks.
Smaller and smaller still, descending into the strange quantum realm where
everyday intuition quietly packs its bags and leaves the building.
This section covered some of the fundamentals of quantum
mechanics and Planck's work. I won't pretend I followed every twist and turn,
but I certainly learned a thing or two.
There were moments when the concepts became challenging, but
that's hardly surprising when you're discussing the deepest levels of reality.
Enter Emergence
This led to the evening's central concept: emergence.
The basic idea is that understanding individual components
doesn't necessarily tell you how a complex system will behave.
You can understand every molecule in a hurricane and still
fail to predict the hurricane.
You can study a single neuron and still not explain
consciousness.
Likewise, looking at one particle in isolation doesn't
necessarily explain the astonishing structures that appear when trillions upon
trillions of particles start interacting.
Complexity emerges.
Like countless notes forming a symphony or individual pixels
creating a masterpiece, simple building blocks interacting under simple rules
can create staggering complexity.
And that was only the first half.
Zooming Back Out Again
After the interval, the direction of travel reversed.
Instead of descending into the microscopic world, we
accelerated outwards from it, across the cosmos.
And what a journey it was.
From quantum fluctuations and the birth of structure in the
early universe, we scaled up through galaxies, galaxy clusters and the vast
cosmic web itself. Along the way came black holes, cosmic evolution and the
changing expansion rate of the universe across more than 13 billion years of
history.
The scale shifts were extraordinary.
One moment you were contemplating subatomic particles. The
next you were looking at structures so vast they make entire galaxies seem
insignificant.
The evening eventually arrived at one of cosmology's biggest
open questions: the possibility of multiple universes.
Not a bad place to end up after starting with a snowflake.
The Most Important Message
Perhaps the most powerful idea of the entire evening wasn't
scientific at all.
It was Cox's repeated emphasis on three simple words:
"I don't know."
Kepler couldn't fully explain the symmetry of snowflakes.
Modern scientists still don't have all the answers either.
And that's exactly the point.
According to Cox, this willingness to say "I don't
know" sits at the very heart of science. Progress depends upon
uncertainty. Discovery begins where certainty ends.
Dogma shuts doors.
Curiosity opens them.
As someone who spends many nights under dark skies
photographing objects we are still only beginning to understand, that message
resonated deeply.
Uncertainty is a primary driver of progress and ‘assuming
absolute certainty’ stalls human evolution. We all need to embrace what we don’t
know – a radical necessary strength if we are to evolve further.
Splendid stuff
Yes, The Fermi Paradox Made an Appearance
Naturally, the question of alien civilisations surfaced.
Why, in a galaxy containing hundreds of billions of
stars, have we found no convincing evidence of other spacefaring civilisations?
Cox touched on several possible explanations.
Perhaps there are "great filters" that most
intelligent species fail to overcome. Resource depletion, climate change,
technological risks and even artificial intelligence all entered the
discussion.
But there was another intriguing possibility.
Complex life on Earth required roughly 3.5 billion years of
relative stability. Perhaps that level of long-term cosmic calm is simply rare.
Maybe most planets experience catastrophic interruptions long before
intelligent life has a chance to emerge.
If so, we may be far rarer than we imagine.
The Pale Blue Dot
The evening concluded with reflections on Carl Sagan's
famous Pale Blue Dot.
This was perhaps the most emotional section of the show.
We are, as Sagan famously said, made of star stuff.
The carbon in our bodies was forged inside stars. Every atom
in us has a cosmic history stretching back billions of years.
And yet this tiny world remains the only home we have ever
known.
Given the absence of evidence for other advanced
civilisations, human consciousness may be an extraordinarily rare phenomenon.
The universe has spent 13.8 billion years arranging atoms into a form capable
of looking back and asking questions about itself.
That's quite a responsibility.
The message was simple: if intelligent life is rare, then
preserving it matters. We all carry the shared responsibility, nae duty, to
care for this fragile and very rare planet.
Human consciousness - an exceedingly rare cosmic anomaly.
Science, Truth and a Few Uncomfortable Moments
Somewhere amid the snowflakes, galaxies and multiverses, Cox
also addressed more modern issues - scientific misinformation and denialism; the
challenge of identifying reliable knowledge in an increasingly noisy world.
His argument was that science progresses precisely because
it has developed methods for removing human bias and testing ideas against
observation and mathematics.
As somebody who failed O-Level Maths five times before
finally scraping a pass, I have to admit there were moments during this section
when I was feeling distinctly twitchy – can a mathematically challenged person
step up to his human scientific responsibilities in a meaningful way?
So, What Did I Take Away?
More than anything, I came away loving the "I don't
know" principle. The willingness to embrace uncertainty isn't weakness.
It's strength. It's the engine of curiosity and the fuel of progress.
Too often we celebrate certainty when perhaps we should
celebrate thoughtful doubt instead.
I also found the Pale Blue Dot argument especially
powerful given today's political climate. Looking at humanity from a cosmic
perspective makes our divisions seem surprisingly small, almost petty.
We're all passengers on the same tiny spacecraft, hurtling
through an unimaginably vast universe together.
That is a perspective worth keeping.
And I suspect it will make this winter's astrophotography
sessions a little more reflective than usual.
Oh, and one fact stood out for me – Cox and others believe
that we are the only planet in our entire galaxy that has ‘goldilocks’
conditions to sustain life of this complexity.
Think about it – 100 to 400 billion stars in the milky way.
NASA Kepler telescope data suggests each of these has at least one planet
orbiting it – and billions of these exist within a ‘habitable’ zone i.e. the
region around a star where liquid water could potentially pool on a rocky
surface.
Mind blowing!
Go a little further – NASA estimate 2 trillion galaxies in
our observable universe - multiply 2 trillion galaxies by an average of roughly
100 billion stars per galaxy, the observable universe contains an estimated 10²²
to 10²⁴ stars (more than all the grains of sand on Earth). And remember, the
"observable universe" is only the bubble of space from which light
has had enough time to reach us since the Big Bang (about 93 billion
light-years across). The total universe outside our horizon is likely much
larger or potentially infinite. Mind blown! Official!
Final Thoughts
Technically, the production was superb.
The giant HD LED screen, real-time data visualisations,
deep-space imagery and carefully crafted soundtrack elevated the experience far
beyond a conventional lecture. At times it felt more like an immersive
documentary than a science talk.
Intellectually, it was challenging too. Some of the concepts
required serious concentration, and occasionally I found myself struggling to
process one idea before the next arrived. There was definitely some heavy
lifting involved.
The lighter moments helped. A few references to Cox's D:Ream
days brought welcome laughs and prevented things becoming too dense.
My only real disappointment?
No Q&A session. For a show built around curiosity, it
felt like a missed opportunity.
But honestly, that's a very minor criticism.
This was an evening packed with wonder, perspective and
genuinely thought-provoking ideas.
I absolutely loved it.
