Cooking is the root of all evil

If we hadn’t learned to roast meat, many of society's ills would never have happened.

The evil that chefs do lives after them. Until his death on 24 June, the Galapagos turtle known as Lonesome George was the rarest creature in the world, his forebears hunted to oblivion by hungry sailors.
 
Then there is the deadening legacy of the Rio+20 summit – an “epic failure”, as Greenpeace put it. We might not be eating rare species to the brink of extinction any longer but, as a result of our activities, climate change will drive many species to their doom. And it is clear that the chefs are to blame for this, too.
 
To see why, we have to take a closer look at the human brain. In order to harness resources that ensure our survival, human beings have learned a range of skills that makes us uniquely dangerous. We learned how to domesticate animals, tame wild land for agriculture, build cities and design and construct machines for rapid travel over vast distances.
 
It takes extraordinary cognitive abilities to pull all this off. Which makes it all the more remarkable that the human brain is not particularly unusual. An analysis published in the 25 June edition of the Proceedings of the National Academy of Sciences of the United States of America shows that a human being’s brain is just a scaled-up version of the generic primate brain.
 
The human brain has about 85 billion of the glial cells that provide a scaffold for the information-processing neuron cells – of which there are roughly 86 billion. This is the same ratio of processing cells to support cells as found in other primate brains. The common report of ten (sometimes 50) times as many neurons as support cells is false.
 
Then there is the claim that the human cerebral cortex, the outer covering of grey matter, is particularly rich in neurons. It is not: the ratio of normal, cerebellar neurons to cortical neurons is the same in human beings as in every other mammal, adjusting for how the density of neurons varies with brain size. 
 
Brain size does differ wildly across nature. But many creatures have large brains only because they have large neurons; a tenfold increase in the number of neurons in a rodent cortex results in a fiftyfold increase in brain size. Primates, on the other hand, pack small neurons: ten times as many neurons give a brain only ten times bigger.
 
Basically, our advanced cognitive abilities arose because we have packed the largest number of neurons into one network. Our brain size seems to have crossed a threshold, a tipping point that switches on the kind of innovative thinking that launches technological development on a scale that can change a planet.
 

Meat is murder

 
The thing is that those extra neurons use up a lot of calories, calories to which the great apes can’t get access. Neither could the earliest human beings. But somewhere in early human evolution, we managed to find the extra few hundred kilocalories a day necessary for our brain expansion. How did we do it? By harnessing fire. Put simply, cooked food yields much more energy than raw.
 
So, it was the first chefs who created the modern human – and all the devastation its brain has unleashed. The cooking of Galapagos turtles was only the final act of the chefs; without the first of their kind, Lonesome George would not have been lonesome at all. If we hadn’t learned to cook, we would never have been able to come up with the means of global travel, prompting us to look for food in far-off places.
 
Without roasted meat, there would have been no Industrial Revolution, no devastation of swaths of Planet Earth’s animal and plant species, no catastrophic climate change. The politicians are off the hook – bring me the head of Jamie Oliver. 
 
Michael Brooks’s “Free Radicals: the Secret Anarchy of Science” is published by Profile Books (£12.99)
 
From global warming to extinction: modern problems come down to meat. Photograph: Getty Images

Michael Brooks holds a PhD in quantum physics. He writes a weekly science column for the New Statesman, and his most recent book is At the Edge of Uncertainty: 11 Discoveries Taking Science by Surprise.

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“I see the world in rectangles”: Life as a Lego Master Builder

Nathan Sawaya stunned colleagues when he quit his job as a lawyer to play with Lego full-time. Now everyone from Lady Gaga to Barack Obama’s a fan.

Nathan Sawaya is describing his favourite Lego brick, shiny-eyed and grinning at the thought of it. But he’s not a child proudly displaying a beloved toy. He’s a 43-year-old former corporate lawyer, and well over six foot tall. The brick he is evangelising about is a small 1x2 socket plate with a stud in the centre of its top. He calls this a “Jumper”.

“You know your Lego lingo?” he asks, looking crestfallen when I shake my head. “It has only one stud instead of two, and it allows you to do even more detail because you can offset the brick a little bit. But in general, I focus on the rectangular pieces.”


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Sawaya is one of the world’s eight Lego Master Builders, having left his job at a New York law firm when he was 32 to dedicate his life to building Lego constructions full-time. His most striking works include a torso of a man ripping his chest open with bricks spilling out, called Yellow, a lifesize T-Rex skeleton, a two-metre long model of Brooklyn Bridge, and replicas of famous paintings, including the Mona Lisa, and Edvard Munch’s Scream.

I meet him in a dark exhibition space in a tent on London’s Southbank, where his works are lit up around us. His latest constructions consist of a series of DC Comics superheroes, so we are surrounded by expressionless Supermen flying around us, capes realistically rippling, and a full-size Batmobile with glistening batwings. His boyish eagerness aside, Sawaya himself looks like a comic book villain – a hulking figure dressed in black from top to toe, with a long black overcoat, piercing eyes and thick dark hair.


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Back in his early thirties when he was a lawyer, he would come home after a punishing day at work and do something creative – drawing, painting, sculpting with clay and wire. He soon began to experiment with Lego, constructing models out of sets he had lying around the house. His son, now 17, was never particularly interested in playing with it himself.

“Eventually I made the choice to leave the law firm behind and become a full-time artist who plays with toys,” he beams.

His family was supportive, his colleagues jealous, and his bosses confused – but it wasn’t long until Sawaya found success as a Lego artist. He has had exhibitions of his work on every continent but Antarctica, and gained some high-profile fans. When he was US President, Barack Obama posed with one of his installations – monochrome life-size men sitting on park benches in Washington – and Bill Clinton has a sculpture in his office, as does Lady Gaga in a music video.

“That is the magic of Lego,” he says of his popularity. “It has become a universal language in a way.”


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Sawaya’s Master Builder status means he can buy all his bricks directly from Lego in bulk – not possible for us Lego civilians. He used to buy sets in toy shops and on eBay when starting out; now he can email asking for 500,000 red 2x4 bricks, say, and Lego ships them to him on wooden pallets. He has six million bricks on hand at his studio in Los Angeles. “Millions of each colour and shape and size,” he says. “And they’re all organised by shape and colour.”

He works away for hours at a time in his studio, with his dogs obediently at his feet, in what he describes as a “trance”. He plans designs on special “brick paper” like graph paper, but sometimes he free-builds from his imagination. “I do often see the world in rectangles,” he says, and sometimes he even dreams in bricks.

Just like children do with Lego sets, he simply snaps the bricks together – though he does dab glue between each brick, which triples the time it takes. He describes it as “therapeutic”, but says making a mistake can be “heartbreaking” – he can lose days and weeks of work at a time. “There may be times where I start questioning my choices in life,” he smiles.


Photos: Copyright Jane Hobson

Sawaya faced snobbery from the art world when he first began approaching galleries as a Lego artist. “Oh, is that cars and trucks and little castles?” was the response. He feels it’s now a more acceptable medium. “It makes art accessible,” he says. “And in doing that, it democratises the art world a bit. It allows people to relate to the art. Everyone has snapped a brick together at one point, every child has played a little bit with Lego.

“As an artist, my role is to inspire. And what better way to do it than through a medium everyone is familiar with? If someone sees a marble statue, they can appreciate it, but very few people have marble at home they can chip away at.”

The first Lego creation Sawaya can remember making was a little house, when he was first given the toy at the age of five. He then made a city that grew to 36 square feet. When he was ten, he was desperate for a dog. His parents refused, so he tore all his creations down and built a lifesize one. “It was blocky and very multi-coloured, of course,” he says. “But it was that ‘Aha!’ moment – when I realised it doesn’t have to be on the front of the box. It can be whatever I want.”

The Art of the Brick: DC Super Heroes is on at Upper Ground, Southbank, London, until 3 September 2017.

Anoosh Chakelian is senior writer at the New Statesman.

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