Article
Culture
Psychology
Weirdness
5 min read

Why smell jumps the queue when it comes to memories

Smells hardwire deep into the brain, writes Henna Cundill, as she explores why they jump-start such vivid memories.
An autumnal scene of a church yard and church framed by leafless trees.
'The smell of dust and damp stone will always cry “safety!”'
Jakub Pabis on Unsplash.

When I was a 22-year-old undergraduate my mother died quite suddenly. I can't remember the name of the undertakers we used, nor the chaplain who took her funeral. I can no longer visualise what any of their faces looked like. I know I visited the chaplain’s house to plan the funeral, but I can't remember exactly where that house was. What sticks is that the day of the funeral was a sultry summer's day, and both the chaplain and the undertakers smelt of perspiration. To this day there are moments where I catch that same whiff of man-sweat in some other location, and for a fleeting second, I am a bewildered 22-year-old once more. 

Here is another memory. I attended a tiny, rural Church of England primary school in the middle of England. At the end of each school year, all of us donned our little Wellington boots, which smelt faintly of slurry (since this was dairy-farming country) and sweaty feet. Then we lined up in a crocodile and trudged through the bluebell-wood (damp leaves) and skirted the edge of fields (silage, which stings the nose) covering the mile or so between our school building and the village church. 

We would enter the church grounds through the back field, hurrying through an eerily muffled graveyard with tombstones towering far above our heads and the grass disturbingly lumpy beneath our little feet. To the chidings of “Quickly!” and “Quietly!” we children scurried down a gravel path, away from this unsettling place of death, to reach the cool sanctuary of a little church, and the comforting smells (for me, at least) of damp stone and dusty hymnbooks. 

Others may not have the same associations, but for me the smell of dust and damp stone will always cry “safety!” and the reassurance that “there are no ghosts in here!” in contrast to that troubling graveyard. From death to life. Yet, at the same time, getting stuck with my nose close to some man’s whiffy armpit on the Tube will forever insinuate that I am just a child pretending to be a grown-up, out of my depth, overwhelmed with one thousand decisions to make (“What flowers do you want for her coffin?”) and no-one to advise. In the midst of life, death again.  

On reflection I will know that my emotions are being manipulated by my nose, in ways which are more or less than helpful depending on the circumstances.

Of course, I am not 22 years old and lost anymore, no matter what that man’s armpit tries to tell me. My rational mind knows better, but my rational mind doesn’t get a say – or doesn’t get the first say anyway. This is because smell is the only one of our senses that bypasses the thalamus (the brain’s ‘filtering gate’ that decides which part of the brain needs to respond to sensory input) and goes straight to the limbic system, where emotional memory is stored.  

Sometimes it is very obvious that this is taking place, such as in the examples given above. On reflection I will know that my emotions are being manipulated by my nose, in ways which are more or less than helpful depending on the circumstances. But it can happen in more subtle ways too. Supermarkets infamously pump out smells to influence our buying choices, and we’re trying to sell our house right now, so we’ve been brewing a whole lot more coffee than we ever usually would.   

Intriguingly, scientists don’t really know why the human sense of smell jumps the queue when it comes to cognitive processing. There are biological theories, such as that the smell of predator could wake up our ancestors while they were sleeping and/or could allow them to follow a scent trail quickly when fleeing danger or seeking food. There are social theories too, such as that we don’t have a lot of good words to describe smells, so the brain just doesn’t bother trying to analyse them. Whatever the truth of the matter, the reality is that (whether we like it or not) our noses are an emotional trip-hazard.  

When I walk through those great oak doors there is a moment, a glitch in the matrix, when the unmistakable smell of church hits my nose. Dust, damp… a little hint of mouse. 

I can’t help wondering what this tells me about my religious practice. Do I go to church because I have made a cognitive decision to worship God each Sunday? Or do I go to church because I am following my nose, getting away from a world full of armpits and responsibilities to a place where I am a seven-year-old girl, all gingham dress and wellies, feeling safe. If so, does it matter?    

Truth is, my mind can give me a dozen reasons not to go to church every single week. In fact, two dozen reasons. More. It has always been a busy week; I’m always behind on work. The house always needs a sort out and the car is never washed. But because certain congregation members are normally counting on me for certain things, and because I’m still pretending to be a grown up, I typically drag myself out the door, and off to church I go.  

And week on week, without fail, when I walk through those great oak doors there is a moment, a glitch in the matrix, when the unmistakable smell of church hits my nose. Dust, damp… a little hint of mouse. My body registers this before my mind; my shoulders drop a little of their tension. Even if it’s just for a fleeting moment, I start to feel that I know for sure what is absolutely real in my life and what is just pretend.  

Is this knowledge irrational – since it doesn’t come from the cognitive part of my mind? Or is there a God who knows that the cognitive part of my mind sometimes tells me all sorts of untrue and unhelpful things. Is there a God who is choosing to reach out to me in more subtle, more ancient ways?  

I can only wonder if I have been following my nose all this time, without even noticing. Drawn along by an ancient scent trail that leads me time and time again…this way…and that way…until I reach a place where there is safety, and bread. 

Review
AI - Artificial Intelligence
Ambition
Culture
6 min read

The awe and outrage of Musk's toxic ingenuity

Walter Isaacson’s Elon Musk, is a biographic rollercoaster reckons Krish Kandiah. One marked by magnificent moments and moral crossroads.

Krish is a social entrepreneur partnering across civil society, faith communities, government and philanthropy. He founded The Sanctuary Foundation.

Elon Musk, wearing a dark suit, stands on a stage to a white robotic looking surgical robot.
Elon Musk at a demonstration of the Neuralink technology in 2020.

There is something both inspiring and unnerving about Elon Musk. He is a game-changing pioneer and innovator in so many industries pivotal to our future: rockets, electric cars, solar panels, batteries, satellite Wi-Fi, and Artificial Intelligence. But he is also no stranger to scandal, controversy and allegation. In his latest biography, author Walter Isaacson explores the toxicity as well as the ingenuity that has come to be associated with the richest man on the planet.  As he reveals Musk’s series of successes, and what has been sacrificed to acquire them, I found myself going on an emotional journey: from compassion to awe to outrage.  

Compassion: a man familiar with misery 

In the opening chapter of his book Isaacson draws attention to the trauma in Elon’s childhood. Perhaps unsurprisingly, Elon was socially awkward at school. When he once pushed back at a boy who bumped into him, he was being beaten up so badly his face was unrecognisable. When he returned from hospital Musk reports how his father reacted: “I had to stand for hours. He yelled at me and called me an idiot and told me that I was just worthless.” There are a number of similar stories from Musk’s seemingly brutal childhood. Errol Musk, Elon’s father, features heavily in a series of shocking revelations including that he slept with his own stepdaughter, fathering two children with her. The background of Musk’s chaotic childhood, his experience of domestic abuse, and his series of fractured relationships provides a context for some of the strange, indeed outrageous things catalogued in the book. 

Having worked for many years with children in the care system and with refugee experience, I understand a little about the impact of trauma and how it can change the brain in profound ways. There is a great deal of evidence showing how adverse childhood experiences can cause long-lasting impact on decision-making, impulse control, relationship building, mental health management and emotional regulation.  While many turn to alcohol, drugs or self-harm as coping mechanisms, others, perhaps like Musk, channel the pain into ambitions and achievements.   

I found myself feeling profoundly sorry for Musk. No child should have to experience such prolonged cruelty both at school and at home. All of us need to know that we are loved and valued, independent of anything we have done or anything that has been done to us.  

Awe: a man of magnificent moments 

Musk’s ideas have revolutionised so many industries. The automotive industries move to electric power owes a lot to the innovation of Tesla. His Space X programme is currently changing the way we think about space travel. His company was the first to create self-landing reusable rockets and was the first private owned company to develop a liquid-propellant rocket that reached orbit; the first to launch, orbit, and recover a spacecraft; the first to send a spacecraft to the International Space Station; and the first to send astronauts to the International Space Station. He is also trying to revolutionise Artificial Intelligence (AI) through his company xAI - a direct competitor to Open AI even though he was one of their early backers.  

Musk has a complex relationship with AI as he is not only one of the lead innovators in the field but also the most prominent of the 33,000 signatories of a letter calling for a pause to ‘Giant AI Experiments’ until there is, in Musk’s words, “a regulatory body established for overseeing AI to make sure that it does not present a danger to the public." 

AI, alongside each of the other major interest areas in Musk’s work, is way beyond any dreams I ever had of a futuristic world. Musk has managed not only to imagine the unimaginable, but to find a way to get there with impressive speed, scale and sustainability values. The more I read about the innovations involved in each step of each project, the more impressed I am with the genius behind them.  

Outrage: a man without a moral compass? 

Despite Walter Isaacson’s clear respect for all Musk is achieving, he paints a warts-and-all picture of his book’s subject. We see a man who is ruthless in his hirings and firings, who has often treated staff and colleagues badly. In 2018, he famously called a rescue diver, helping to save teenage boys from a flooded cave in Thailand, a ‘paedo’, in what seemed to be a reaction to a snub to his offer of using his minisub.  

In light of these sorts of outbursts, and his apparent desire to save the world from looming environmental disaster, it is no wonder that some people have accused Musk of having a messiah complex. Yet if he does, it is a very different mindset from the true messiah. He appears to me to be morally, emotionally and financially the polar opposite to the Jesus whose willingness to sacrifice himself on behalf of those in need was central to his claim to be sent from God. From the way Isaacson describes Musk, I see him more as a man on a mission to save himself than to save those around him.   

The future? Musk, a man at a crossroads. 

Isaacson closes his book with the following analysis:  

“But would a restrained Musk accomplish as much as Musk unbound? Is being unfiltered and untethered integral to who he is? Could you get the rockets to orbit or the transition to electric vehicles without accepting all aspects of him, hinged and unhinged? Sometimes great innovators are risk-seeking man-children who resist potty training. They are reckless, cringeworthy, sometimes even toxic. They can also be crazy. Crazy enough to think they can change the world.” 

I find this a disconcerting epilogue to the book. It suggests that we can pardon toxicity in the name of innovation, that the ends always justify the means, that morality and decency can take second place to advancement and wealth. If this stance were to be applied to, say, the development of AI, Musk’s fears of it becoming a danger to the public may sadly well be realised.  

While factors such as grand ambition, the contribution to society, early years trauma, and mental health struggles may provide a robust explanation of why a person may be toxic, toxicity itself can never be excused. No amount of wealth can undo the harm toxic masculinity does to those around us. No amount of charitable giving can buy a person a generous spirit or moral compass. No amount of environmental awards can create the sort of world we really want to live in in the future – a world where people treat one another with the respect they need and deserve.     

Elon Musk’s biography is unusual because he is still mid-journey. Who knows what else he may go on to achieve or fail at, to create or destroy? Will his AI revolution be a force for good, helping to create a better future for those who need it most, or will it become the behemoth of the doomsayers? What will future editions add to his biography? Is being ‘untethered’ really integral to who Musk is, or can he change? The visionary in me would love to imagine a redemption and transformation story for Musk that can unleash a compassionate generosity that could even overshadow his creative genius. The sceptic in me fears he may end up doing more harm than good.