‘Know thyself’ is not just silly advice: it’s actively dangerous

Knowing who you are can stop you from becoming who you want to be.


 

There is a phrase you are as likely to find in a serious philosophy text as you are in the wackiest self-help book: ‘Know thyself!’ The phrase has serious philosophical pedigree: by Socrates’ time, it was more or less received wisdom (apparently chiselled into the forecourt of the Temple of Apollo at Delphi) though a form of the phrase reaches back to Ancient Egypt. And ever since, the majority of philosophers have had something to say about it. 


But ‘Know thyself!’ also has self-help appeal. Is your aim to accept yourself? Well, you need to know thyself for that first. Or is it to make good decisions – decisions that are right for you? Again, this would be difficult unless you knew thyself. The problem is that none of this is based on a realistic picture of the self and of how we make decisions. This whole ‘knowing thyself’ business is not as simple as it seems. In fact, it might be a serious philosophical muddle – not to say bad advice.

Let’s take an everyday example. You go to the local cafe and order an espresso. Why? Just a momentary whim? Trying something new? Maybe you know that the owner is Italian and she would judge you if you ordered a cappuccino after 11am? Or are you just an espresso kind of person?

I suspect that the last of these options best reflects your choices. You do much of what you do because you think it meshes with the kind of person you think you are. You order eggs Benedict because you’re an eggs Benedict kind of person. It’s part of who you are. And this goes for many of our daily choices. You go to the philosophy section of the bookshop and the fair-trade section at the grocer’s shop because you are a philosopher who cares about global justice, and that’s what philosophers who care about global justice do.

We all have fairly stable ideas about what kind of people we are. And that’s all for the best – we don’t have to think too hard when ordering coffee every morning. These ideas about what kind of people we are might also be accompanied by ideas about what kind of people we are not – I’m not going to shop at Costco, I’m not that kind of person. (This way of thinking about yourself could easily slide into moralising your preferences, but let’s not open that can of worms here.)

There is, however, a deep problem with this mental set-up: people change. There are tumultuous periods when we change drastically – in times of romantic love, say, or divorce, or having children. Often we are aware of these changes. After you’ve had kids, you probably notice that you’ve suddenly become a morning person.

Brazilian-born US marine Lance Corporal. (Photo credit: MAURICIO LIMA/AFP/Getty Images)

But most changes happen gradually and under the radar. A few mechanisms of these changes are well understood, such as the ‘mere exposure effect’: the more you are exposed to something, the more you tend to like it. Another, more troubling one, is that the more your desire for something is frustrated, the more you tend to dislike it. These changes happen gradually, often without us noticing anything.

The problem is this: if we change while our self-image remains the same, then there will be a deep abyss between who we are and who we think we are. And this leads to conflict.

To make things worse, we are exceptionally good at dismissing even the possibility that we might change. Psychologists have given this phenomenon a fancy name: ‘The End of History Illusion’. We all think that who we are now is the finished product: we will be the same in five, 10, 20 years. But, as these psychologists found, this is completely delusional – our preferences and values will be very different already in the not-so-distant future.

Why is this such a big issue? It might be okay when it comes to ordering the espresso. Maybe you now slightly prefer cappuccino, but you think of yourself as an espresso kind of person, so you keep ordering espresso. So you’re enjoying your morning drink a little bit less – not such a big deal.

But what is true of espresso is true of other preferences and values in life. Maybe you used to genuinely enjoy doing philosophy, but you no longer do. But as being a philosopher is such a stable feature of your self-image, you keep doing it. There is a huge difference between what you like and what you do. What you do is dictated not by what you like, but by what kind of person you think you are.

The real harm of this situation is not only that you spend much of your time doing something that you don’t particularly like (and often positively dislike). Instead, it is that the human mind does not like blatant contradictions of this kind. It does its best to hide this contradiction: a phenomenon known as cognitive dissonance.

Hiding a gaping contradiction between what we like and what we do takes significant mental effort and this leaves little energy to do anything else. And if you have little mental energy left, it is so much more difficult to switch off the TV or to resist spending half an hour looking at Facebook or Instagram.

‘Know thyself!’, right? If we take the importance of change in our lives seriously, this just isn’t an option. You might be able to know what you think of yourself in this moment. But what you think of yourself is very different from who you are and what you actually like. And in a couple of days or weeks, all of this might change anyway.

Knowing thyself is an obstacle to acknowledging and making peace with constantly changing values. If you know thyself to be such-and-such a kind of person, this limits your freedom considerably. You might have been the one who chose to be an espresso person or a donating-to-charity person but, once these features are built into your self-image, you have very little say in what direction your life is going. Any change would be either censored or lead to cognitive dissonance. As André Gide wrote in Autumn Leaves (1950): ‘A caterpillar who seeks to know himself would never become a butterfly.’ 

Bence Nanay 

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This article was originally published at Aeon and has been republished under Creative Commons.

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Why "nuclear pasta" is the strongest material in the universe

Through computationally intensive computer simulations, researchers have discovered that "nuclear pasta," found in the crusts of neutron stars, is the strongest material in the universe.

Accretion disk surrounding a neutron star. Credit: NASA
Surprising Science
  • The strongest material in the universe may be the whimsically named "nuclear pasta."
  • You can find this substance in the crust of neutron stars.
  • This amazing material is super-dense, and is 10 billion times harder to break than steel.

Superman is known as the "Man of Steel" for his strength and indestructibility. But the discovery of a new material that's 10 billion times harder to break than steel begs the question—is it time for a new superhero known as "Nuclear Pasta"? That's the name of the substance that a team of researchers thinks is the strongest known material in the universe.

Unlike humans, when stars reach a certain age, they do not just wither and die, but they explode, collapsing into a mass of neurons. The resulting space entity, known as a neutron star, is incredibly dense. So much so that previous research showed that the surface of a such a star would feature amazingly strong material. The new research, which involved the largest-ever computer simulations of a neutron star's crust, proposes that "nuclear pasta," the material just under the surface, is actually stronger.

The competition between forces from protons and neutrons inside a neutron star create super-dense shapes that look like long cylinders or flat planes, referred to as "spaghetti" and "lasagna," respectively. That's also where we get the overall name of nuclear pasta.

Caplan & Horowitz/arXiv

Diagrams illustrating the different types of so-called nuclear pasta.

The researchers' computer simulations needed 2 million hours of processor time before completion, which would be, according to a press release from McGill University, "the equivalent of 250 years on a laptop with a single good GPU." Fortunately, the researchers had access to a supercomputer, although it still took a couple of years. The scientists' simulations consisted of stretching and deforming the nuclear pasta to see how it behaved and what it would take to break it.

While they were able to discover just how strong nuclear pasta seems to be, no one is holding their breath that we'll be sending out missions to mine this substance any time soon. Instead, the discovery has other significant applications.

One of the study's co-authors, Matthew Caplan, a postdoctoral research fellow at McGill University, said the neutron stars would be "a hundred trillion times denser than anything on earth." Understanding what's inside them would be valuable for astronomers because now only the outer layer of such starts can be observed.

"A lot of interesting physics is going on here under extreme conditions and so understanding the physical properties of a neutron star is a way for scientists to test their theories and models," Caplan added. "With this result, many problems need to be revisited. How large a mountain can you build on a neutron star before the crust breaks and it collapses? What will it look like? And most importantly, how can astronomers observe it?"

Another possibility worth studying is that, due to its instability, nuclear pasta might generate gravitational waves. It may be possible to observe them at some point here on Earth by utilizing very sensitive equipment.

The team of scientists also included A. S. Schneider from California Institute of Technology and C. J. Horowitz from Indiana University.

Check out the study "The elasticity of nuclear pasta," published in Physical Review Letters.


How a huge, underwater wall could save melting Antarctic glaciers

Scientists think constructing a miles-long wall along an ice shelf in Antarctica could help protect the world's largest glacier from melting.

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Surprising Science
  • Rising ocean levels are a serious threat to coastal regions around the globe.
  • Scientists have proposed large-scale geoengineering projects that would prevent ice shelves from melting.
  • The most successful solution proposed would be a miles-long, incredibly tall underwater wall at the edge of the ice shelves.

The world's oceans will rise significantly over the next century if the massive ice shelves connected to Antarctica begin to fail as a result of global warming.

To prevent or hold off such a catastrophe, a team of scientists recently proposed a radical plan: build underwater walls that would either support the ice or protect it from warm waters.

In a paper published in The Cryosphere, Michael Wolovick and John Moore from Princeton and the Beijing Normal University, respectively, outlined several "targeted geoengineering" solutions that could help prevent the melting of western Antarctica's Florida-sized Thwaites Glacier, whose melting waters are projected to be the largest source of sea-level rise in the foreseeable future.

An "unthinkable" engineering project

"If [glacial geoengineering] works there then we would expect it to work on less challenging glaciers as well," the authors wrote in the study.

One approach involves using sand or gravel to build artificial mounds on the seafloor that would help support the glacier and hopefully allow it to regrow. In another strategy, an underwater wall would be built to prevent warm waters from eating away at the glacier's base.

The most effective design, according to the team's computer simulations, would be a miles-long and very tall wall, or "artificial sill," that serves as a "continuous barrier" across the length of the glacier, providing it both physical support and protection from warm waters. Although the study authors suggested this option is currently beyond any engineering feat humans have attempted, it was shown to be the most effective solution in preventing the glacier from collapsing.

Source: Wolovick et al.

An example of the proposed geoengineering project. By blocking off the warm water that would otherwise eat away at the glacier's base, further sea level rise might be preventable.

But other, more feasible options could also be effective. For example, building a smaller wall that blocks about 50% of warm water from reaching the glacier would have about a 70% chance of preventing a runaway collapse, while constructing a series of isolated, 1,000-foot-tall columns on the seafloor as supports had about a 30% chance of success.

Still, the authors note that the frigid waters of the Antarctica present unprecedently challenging conditions for such an ambitious geoengineering project. They were also sure to caution that their encouraging results shouldn't be seen as reasons to neglect other measures that would cut global emissions or otherwise combat climate change.

"There are dishonest elements of society that will try to use our research to argue against the necessity of emissions' reductions. Our research does not in any way support that interpretation," they wrote.

"The more carbon we emit, the less likely it becomes that the ice sheets will survive in the long term at anything close to their present volume."

A 2015 report from the National Academies of Sciences, Engineering, and Medicine illustrates the potentially devastating effects of ice-shelf melting in western Antarctica.

"As the oceans and atmosphere warm, melting of ice shelves in key areas around the edges of the Antarctic ice sheet could trigger a runaway collapse process known as Marine Ice Sheet Instability. If this were to occur, the collapse of the West Antarctic Ice Sheet (WAIS) could potentially contribute 2 to 4 meters (6.5 to 13 feet) of global sea level rise within just a few centuries."

Why the worst part about climate change isn't rising temperatures

The world's getting hotter, and it's getting more volatile. We need to start thinking about how climate change encourages conflict.

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Politics & Current Affairs
  • Climate change is usually discussed in terms of how it impacts the weather, but this fails to emphasize how climate change is a "threat multiplier."
  • As a threat multiplier, climate change makes already dangerous social and political situations even worse.
  • Not only do we have to work to minimize the impact of climate change on our environment, but we also have to deal with how it affects human issues today.

Human beings are great at responding to imminent and visible threats. Climate change, while dire, is almost entirely the opposite: it's slow, it's pervasive, it's vague, and it's invisible. Researchers and policymakers have been trying to package climate change in a way that conveys its severity. Usually, they do so by talking about its immediate effects: rising temperature, rising sea levels, and increasingly dangerous weather.

These things are bad, make no mistake about it. But the thing that makes climate change truly dire isn't that Cape Cod will be underwater next century, that polar bears will go extinct, or that we'll have to invent new categories for future hurricanes. It's the thousands of ancillary effects — the indirect pressure that climate change puts on every person on the planet.

How a drought in the Middle East contributed to extremism in Europe

(DANIEL LEAL-OLIVAS/AFP/Getty Images)

Nigel Farage in front of a billboard that leverages the immigration crisis to support Brexit.

Because climate change is too big for the mind to grasp, we'll have to use a case study to talk about this. The Syrian civil war is a horrific tangle of senseless violence, but there are some primary causes we can point to. There is the longstanding conflicts between different religious sects in that country. Additionally, the Arab Spring swept Syria up in a wave of resistance against authoritarian leaders in the Middle East — unfortunately, Syrian protests were brutally squashed by Bashar Al-Assad. These, and many other factors, contributed to the start of the Syrian civil war.

One of these other factors was drought. In fact, the drought in that region — it started in 2006 — has been described as the "worst long-term drought and most severe set of crop failures since agricultural civilization began in the Fertile Crescent many millennia ago." Because of this drought, many rural Syrians could no longer support themselves. Between 2006 and 2009, an estimated 1.5 million Syrians — many of them agricultural workers and farmers — moved into the country's major cities. With this sudden mixing of different social groups in a country where classes and religious sects were already at odds with one another, tensions rose, and the increased economic instability encouraged chaos. Again, the drought didn't cause the civil war — but it sure as hell helped it along.

The ensuing flood of refugees to Europe is already a well-known story. The immigration crisis was used as a talking point in the Brexit movement to encourage Britain to leave the EU. Authoritarian or extreme-right governments and political parties have sprung up in France, Italy, Greece, Hungary, Slovenia, and other European countries, all of which have capitalized on fears of the immigration crisis.

Why climate change is a "threat multiplier"

This is why both NATO and the Pentagon have labeled climate change as a "threat multiplier." On its own, climate change doesn't cause these issues — rather, it exacerbates underlying problems in societies around the world. Think of having a heated discussion inside a slowly heating-up car.

Climate change is often discussed in terms of its domino effect: for example, higher temperatures around the world melt the icecaps, releasing methane stored in the polar ice that contributes to the rise in temperature, which both reduces available land for agriculture due to drought and makes parts of the ocean uninhabitable for different animal species, wreaking havoc on the food chain, and ultimately making food more scarce.

Maybe we should start to consider climate change's domino effect in more human and political terms. That is, in terms of the dominoes of sociopolitical events spurred on by climate change and the missing resources it gobbles up.

What the future may hold

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Increasingly severe weather events will make it more difficult for nations to avoid conflict.

Part of why this is difficult to see is because climate change does not affect all countries proportionally — at least, not in a direct sense. Germanwatch, a German NGO, releases a climate change index every year to analyze exactly how badly different countries have been affected by climate change. The top five most at-risk countries are Haiti, Zimbabwe, Fiji, Sri Lanka, and Vietnam. Notice that many of these places are islands, which are at the greatest risk for major storms and rising sea levels. Some island nations are even expected to literally disappear — the leaders of these nations are actively making plans to move their citizens to other countries.

But Germanwatch's climate change index is based on weather events. It does not account for the political and social instability that will likely result. The U.S. and many parts of Europe are relatively low on the index, but that is precisely why these countries will most likely need to deal with the human cost of climate change. Refugees won't go from the frying pan into the fire: they'll go to the closest, safest place available.

Many people's instinctive response to floods of immigrants is to simply make borders more restrictive. This makes sense — a nation's first duty is to its own citizens, after all. Unfortunately, people who support stronger immigration policies tend to have right-wing authoritarian tendencies. This isn't always the case, of course, but anecdotally, we can look at the governments in Europe that have stricter immigration policies. Hungary, for example, has extremely strict policies against Muslim immigrants. It's also rapidly turning into a dictatorship. The country has cracked down on media organizations and NGOs, eroded its judicial system's independence, illegalized homelessness, and banned gender studies courses.

Climate change and its sociopolitical effects, such as refugee migration, aren't some poorer country's problem. It's everyone's problem. Whether it's our food, our homes, or our rights, climate change will exact a toll on every nation on Earth. Stopping climate change, or at least reducing its impact, is vitally important. Equally important is contending with the multifaceted threats its going to throw our way.