Scientists have spent hundreds of years trying to understand how human sensory organs work, concluding that sight is the most important sense, followed hearing, touch, taste and smell.

To answer this question, an international team led by Professor Majid, conducted a large-scale experiment to investigate the ease with which people could communicate about colors, shapes, sounds, textures, tastes and smells

The findings could prove significant for a range of practices in education and other professions to help further enhance how people understand and utilise their sensory perceptions of the world

If the commonly accepted hierarchy of the senses were true, participants in the study should have been able to communicate about vision most easily, followed by sounds, such as loud and quiet; textures, such as smooth and rough; taste, such as sweet and sour; and smell, such as chocolate and coffee

"While English speakers behaved as predicted, describing sight and sound with ease, this was not the case across all cultures

What this study shows us is that we can't always assume that understanding certain human functions within the context of the English language provides us with a universally relevant perspective or solution

In a modern digital-led world, which typically engages sight and hearing, it could be worthwhile learning from other cultures in the way that taste and smell can be communicated

This could be particularly important for the future of some professions, such as the food industry, for example, where being able to communicate about taste and smell is essential

For many reasons, then, it would be very useful to understand how visual memory facilitates these mental operations, as well as constrains our ability to perform them

Visual working memory is where visual images are temporarily stored while your mind works away at other tasks—like a whiteboard on which things are briefly written and then wiped away. We rely on visual working memory when remembering things over brief intervals, such as when copying lecture notes to a notebook.

Which is exactly what happened: Zhang & Luck found that participants were either very precise, or they completely guessed; that is, they either remembered the square’s color with great accuracy, or forgot it completely

The participants had a simple task: to recall the color of one particular square, not knowing in advance which square they would be asked to recall. The psychologists assumed that measuring how visual working memory behaves over increasing demands (i.e., the increasing durations of 1,4 or 10 seconds) would reveal something about how the system works.

If short-term visual memories fade away—if they are gradually wiped away from the whiteboard—then after longer intervals participants’ accuracy in remembering the colors should still be high, deviating only slightly from the square’s original color. But if these memories are wiped out all at once—if the whiteboard is left untouched until, all at once, scrubbed clean—then participants should make very precise responses (corresponding to instances when the memories are still untouched) and then, after the interval grows too long, very random guesses.

UC Davis psychologists Weiwei Zhang and Steven Luck have shed some light on this problem. In their experiment, participants briefly saw three colored squares flashed on a computer screen, and were asked to remember the colors of each square. Then, after 1, 4 or 10 seconds the squares re-appeared, except this time their colors were missing, so that all that was visible were black squares outlined in white.

But this, it turns out, is not true of all memories

In a recent paper, Researchers at MIT and Harvard found that, if a memory can survive long enough to make it into what is called “visual long-term memory,” then it doesn’t have to be wiped out at all.

Talia Konkle and colleagues showed participants a stream of three thousand images of different scenes, such as ocean waves, golf courses or amusement parks. Then, participants were shown two hundred pairs of images—an old one they had seen in the first task, and a completely new one—and asked to indicate which was the old one.

Participants were remarkably accurate at spotting differences between the new and old images—96 percent

In a recent review, researchers at Harvard and MIT argue that the critical factor is how meaningful the remembered images are—whether the content of the images you see connects to pre-existing knowledge about them

This prior knowledge changes how these images are processed, allowing thousands of them to be transferred from the whiteboard of short-term memory into the bank vault of long-term memory, where they are stored with remarkable detail.

Together, these experiments suggest why memories are not eliminated equally— indeed, some don’t seem to be eliminated at all. This might also explain why we’re so hopeless at remembering some things, and yet so awesome at remembering others.

Meanwhile, the Office of National Statistics in the UK has found that rates of depression have doubled. Both depression and anxiety are known to have an impact on memory.

Although levels of anxiety peaked when lockdown started and have gradually reduced, average levels have remained higher than in usual times, especially in people who are young, living alone, living with children, living on a low income or in urban areas

Repetition of stories helps us to consolidate our memories of what happened to us – so-called episodic memories. If we can’t socialise as much, perhaps it’s not surprising that those memories don’t feel as crystal clear as usual.

This is all made more difficult by a lack of cues to aid our memories. If you go out to work then your journey, the change of scenery and breaks you take punctuate the day, giving you time points to anchor your memorie

Then there’s a general fatigue, which also doesn’t help our memories. Zoom meetings are tiring, some work is much harder from home and holidays are getting cancelled. A lack of routine and anxiety about the pandemic can disturb our sleep. Put all that together – basically we’re consistently tired.

So with the combination of fatigue, anxiety, a lack of cues, and fewer social interactions, it’s no wonder that some of us feel our memories are letting us down.

The good news is that there are things we can do about it. Going for a walk, especially along unfamiliar streets, will bring your brain back to attention

Making sure the weekdays and the weekends are different enough not to merge into one can help with the distortions our new life can have on our perception of time.

In short, Nader believes that the very act of remembering can change our memories

Much of his research is on rats, but he says the same basic principles apply to human memory as well. In fact, he says, it may be impossible for humans or any other animal to bring a memory to mind without altering it in some way.

Memories surrounding a major event like September 11 might be especially susceptible, he says, because we tend to replay them over and over in our minds and in conversation with others—with each repetition having the potential to alter them

cientists have long known that recording a memory requires adjusting the connections between neurons

Each memory tweaks some tiny subset of the neurons in the brain (the human brain has 100 billion neurons in all), changing the way they communicate. Neurons send messages to one another across narrow gaps called synapses

According to this view, the brain’s memory system works something like a pen and notebook. For a brief time before the ink dries, it’s possible to smudge what’s written

Researchers had found that a memory could be weakened if they gave an animal an electric shock or a drug that interferes with a particular neurotransmitter just after they prompted the animal to recall the memory. This suggested that memories were vulnerable to disruption even after they had been consolidated.

If memories are consolidated just once, when they are first created, he reasoned, the drug would have no effect on the rat’s memory of the tone or on the way it would respond to the tone in the future.

Perhaps it’s better if we can rewrite our memories every time we recall them. Nader suggests that reconsolidation may be the brain’s mechanism for recasting old memories in the light of everything that has happened since. In other words, it just might be what keeps us from living in the past.

forgetting seems to be an active mechanism that is constantly at work in the brain.

“To have proper memory function, you have to have forgetting.

Different types of memory are created and stored in varying ways, and in various areas of the brain.

Neurons communicate with each other through synapses — junctions between these cells that include a tiny gap across which chemical messengers can be sent

The more often a memory is recalled, the stronger its neural network becomes. Over time, and through consistent recall, the memory becomes encoded in both the hippocampus and the cortex

Because the hippocampus is not where long-term memories are stored in the brain, its dynamic nature is not a flaw but a feature

Neuroscientists often refer to this physical representation of a memory as an engram. They think that each engram has a number of synaptic connections, sometimes even in several areas of the brain, and that each neuron and synapse can be involved in multiple engrams

The brain is always trying to forget the information it’s already learnt,

Hardt’s lab showed that a dedicated mechanism continuously promotes the expression of AMPA receptors at synapses.

To forget certain things, it seemed that the rat brain had to proactively destroy connections at the synapse. Forgetting, Hardt says, “is not a failure of memory, but a function of it”.

Paul Frankland, a neuroscientist at the Hospital for Sick Children in Toronto, Canada, had also found evidence that the brain is wired to forget

Frankland was studying the production of new neurons, or neurogenesis, in adult mice. The process had long been known to occur in the brains of young animals, but had been discovered in the hippocampi of mature animals only about 20 years earlier. Because the hippocampus is involved in memory formation, Frankland and his team wondered whether increasing neurogenesis in adult mice could help the rodents to remember.

Eventually, it exists independently in the cortex, where it is put away for long-term storage.

Researchers think that the human brain might operate in a similar way

Studies of people with exceptional autobiographical memories or with impaired ones seem to bear this out

People with a condition known as highly superior autobiographical memory (HSAM) remember their lives in such incredible detail that they can describe the outfit that they were wearing on any particular day

Those with severely deficient autobiographical memory (SDAM), however, are unable to vividly recall specific events in their lives

As a result, they also have trouble imagining what might happen in the future

By better understanding how we forget, through the lenses of both biology and cognitive psychology, Anderson and other researchers might be edging nearer to improving treatments for anxiety, PTSD and even Alzheimer’s disease

Hardt thinks that Alzheimer’s disease might also be better understood as a malfunction of forgetting rather than remembering

But more memory researchers are shifting their focus to examine how the brain forgets, as well as how it remembers

In the past decade, researchers have begun to view forgetting as an important part of a whole

Why do we have memory at all? As humans, we entertain this fantasy that it’s important to have autobiographical details,

Forgetting enables us as individuals, and as a species, to move forwards.

Copernicus faced no persecution when he was alive because he died shortly after publishing his book. Galileo, on the other hand, was tried by the Inquisition after his book was published

As the contents of the Bible were taken literally, the publishing of these books proved, to the Church, that Copernicus and Galileo were sinners; they preached, through their writing, that the Bible was wrong.

By writing in this fashion, Copernicus would have been able to deny that he himself believed in heliocentrism because he phrased it as nothing more than a hypothesis and as a result, would be able to slip past the Church's dislike of heliocentrism

fter his death, the Church was heavily involved in the Council of Trent during the years 1545 to 1563 and other matters10.) . Thus, Revolutions escaped prohibition for many years and eventually influenced Galileo Galilei, who read it and wrote on the subject himself

In 1616, Galileo was issued an injunction not to “hold, defend, or teach” heliocentrism

The Master of the Sacred Palace ordered Galileo to have someone the Master chose review the manuscript to ensure it was fit for publishing.

Also, the title with the sea in it might have made the Church feel threatened that Galileo was supporting heliocentrism, which would have resulted in Galileo being charged with heresy.

With that decision, it was determined that Galileo would be tried by the Inquisition. The Inquisition did not need to decide if Galileo was innocent or guilty, they already knew he was guilty. The Inquisition wanted to determine what Galileo's intentions were. Galileo tried to delay going to Rome for the trial, most likely due to the Inquisition's infamous methods.

Our 21st century tools and technologies that seem to work miracles and make us feel invincible and powerful, are practically defenseless in the face of COVID-19. We are left with only the primitive weapons of cloth masks and keeping our distance.

Where we once dismissed people who bag our groceries, or drive our kids’ school buses, for example, now we realize they are “essential workers.” 

“There is enough.” As Buckminster Fuller, futurist, famed architect, and creator of the geodesic dome said, there is enough of every resource for everyone on the planet; it’s just a matter of distribution.

Competitors were in their corners, battling out for marketshare or geopolitical power and dominance.

We are experiencing that now, watching sharing be taken to an entirely new level to manage COVID-19.  

With literally everyone working from home and only “seeing” each other on Zoom or Skype, how we look, what we wear, and the usual vanity concerns are out the window.

The way women lead was (still) being undervalued and dismissed as “too soft” or second-rate in many powerful circles.

Women are the majority force in the healthcare battalions keeping us and our loved ones alive and giving comfort to those who lose their battles in our absence. 

There are many more shifts occurring from COVID-19 – from a greater appreciation for nature, to more kindness and compassion, a clearer sense of how we spend our time, to careers and businesses.

Talk of paradigms and paradigm shifts has since become commonplace — not only in science, but also in business, social movements and beyond.

He suggested that scientific revolutions are not a matter of incremental advance; they involve "paradigm shifts."

Kuhn posited two kinds of scientific change: incremental developments in the course of what he called "normal science," and scientific revolutions that punctuate these more stable periods.

But what, exactly, is a paradigm shift? Or, for that matter, a paradigm?

Accordingly, a paradigm shift is defined as "an important change that happens when the usual way of thinking about or doing something is replaced by a new and different way."

It turns out this question is hard to answer — not because paradigm has an especially technical or obscure definition, but because it has many. In a paper published in 1970, Margaret Masterson presented a careful reading of Kuhn's 1962 book. She identified 21 distinct senses in which Kuhn used the term paradigm.

First, a paradigm could refer to a special kind of achievement

"Achievements that share these two characteristics I shall henceforth refer to as 'paradigms.' "

But in other parts of the text, paradigms cover more ground. Paradigms can offer general epistemological viewpoints, like the "philosophical paradigm initiated by Descartes," or define a broad sweep of reality, as when "Paradigms determine large areas of experience at the same time."

In the end, Masterson distills Kuhn's 21 senses of paradigm into a more respectable three, and she identifies what she sees as both novel and important aspects of Kuhn's "paradigm view" of science. But for our purposes, Masterson's analysis sheds light on two questions that turn out to be related: what Kuhn meant by paradigm in the first place, and how a single word managed to assume such a broad and expansive set of meanings after being unleashed by Kuhn's book.

A paradigm dictates:

what is observed and measured

the questions we ask about those observations

how the questions are formulated

how the results are interpreted

how research is carried out

what equipment is appropriate

In fact, Kuhn strongly suggested that research in a deeply entrenched paradigm invariably ends up reinforcing that paradigm, since anything that contradicts it is ignored or else pressed through the preset methods until it conforms to already established dogma

The body of pre-existing evidence in a field conditions and shapes the collection and interpretation of all subsequent evidence. The certainty that the current paradigm is reality itself is precisely what makes it so difficult to accept alternatives.

It is very common for scientists to discard certain models or pick up emerging theories. But once in a while, enough anomalies accumulate within a field that the entire paradigm itself is required to change to accommodate them.

Many physicists in the 19th century were convinced that the Newtonian paradigm that had reigned for 200 years was the pinnacle of discovery and that scientific progress was more or less a question of refinement. When Einstein published his theories on General Relativity, it was not just another idea that could fit comfortably into the existing paradigm. Instead, Newtonian Physics itself was relegated to being a special subclass of the greater paradigm ushered in by General Relativity. Newton’s three laws are still faithfully taught in schools, however we now operate within a paradigm that puts those laws into a much broader context

The concept of paradigm is closely related to the Platonic and Aristotelian views of knowledge. Aristotle believed that knowledge could only be based upon what is already known, the basis of the scientific method. Plato believed that knowledge should be judged by what something could become, the end result, or final purpose. Plato's philosophy is more like the intuitive leaps that cause scientific revolution; Aristotle's the patient gathering of data.

Kuhn looked at the history of science and argued that science does not simply progress by stages based upon neutral observations

For Kuhn, the history of science is characterized by revolutions in scientific outlook. Scientists have a worldview or "paradigm"

A paradigm is a universally recognizable scientific achievement that, for a time, provides model problems and solutions to a community of practitioners.

Scientists accept the dominant paradigm until anomalies are thrown up.  Scientists then begin to question the basis of the paradigm itself, new theories emerge which challenge the dominant paradigm and eventually one of these new theories becomes accepted as the new paradigm.

A particular work may “define the legitimate problems and methods of a research field for succeeding generations of practitioners.”

This is where the paradigm shift occurs.

The pre-paradigmatic state refers to a period before a scientific consensus has been reached.

Phase 2: Normal Science

A paradigm is established which lays the foundations for legitimate work within the discipline. Scientific work then consists in articulation of the paradigm, in solving puzzles that it throws up.

It is necessary for normal science to be uncritical. If all scientists were critical of a theory and spent time trying to falsify it, no detailed work would ever get done.

"Normal Science, the activity in which most scientists inevitably spend almost all of their time, is predicated on the assumption that the scientific community knows what the world is like

Phase 3: Crisis

Phase 1: Pre-sciencePhase 1: Pre-science

Anomalies become serious, and a crisis develops if the anomalies undermine the basic assumptions of the paradigm and attempts to remove them consistently fail

If the anomalies can be resolved, the crisis is over and normal science resumes. If not, there is a scientific revolution which involves a change of paradigm.

Revoluti

Phase 4: Revolution

Eventually a new paradigm will be established, but not as a result of any logically compelling justification.

The enormous impact of Thomas Kuhn's work can be measured in the changes it brought about in the vocabulary of the philosophy of science: besides "paradigm shift", Kuhn raised the word "paradigm" itself from a term used in certain forms of linguistics to its current broader meaning.

For Kuhn, the choice of paradigm was sustained by, but not ultimately determined by, logical processes.

Kuhn believed that it represented the consensus of the community of scientists

Successive paradigms are incommensurable. Kuhn says that a later paradigm may be a better instrument for solving puzzles than an earlier one.  But if each paradigm defines its own puzzles, what is a puzzle for one paradigm may be no puzzle at all for another

Science does not change its paradigm over night. Younger scientists take a new paradigm forward

When we consider how we engage with the news, some shortcuts we may want to pay close attention to, and reflect carefully on, are cognitive biases.

In fact, without these heuristics, it would be impossible for us to process all the information we receive daily. However, the use of these shortcuts can lead to “blind spots,” or unintentional ways we respond to information that can have negative consequences for how we engage with, digest, and share the information we encounter

These shortcuts, also called heuristics, streamline our problem-solving process and help us make relatively quick decisions.

Confirmation bias is the tendency to seek out and value information that confirms our pre-existing beliefs while discarding information that proves our ideas wrong.

Cognitive biases are best described as glitches in how we process information

Echo chamber effect refers to a situation in which we are primarily exposed to information, people, events, and ideas that already align with our point of view.

Anchoring bias, also known as “anchoring,” refers to people’s tendency to consider the first piece of information they receive about a topic as the most reliable

The framing effect is what happens when we make decisions based on how information is presented or discussed, rather than its actual substance.

Fluency heuristic occurs when a piece of information is deemed more valuable because it is easier to process or recall

Everyone operates under one or more cognitive biases. So, when searching for and reading the news (or other information), it is important to be aware of how these biases might shape how we make sense of this information.

In conclusion, we may not be able to control the content of the news — whether it is fake, reliable, or somewhere in between — but we can learn to be aware of how we respond to it and adjust our evaluations of the news accordingly.

These cognitive errors, which distract leaders from optimal policy making and citizens from taking steps to promote their own and others’ interests, cannot merely be ascribed to repudiations of science.

The first error that thwarts effective policy making during crises stems from what economists have called the “identifiable victim effect.” Humans respond more aggressively to threats to identifiable lives, ie, those that an individual can easily imagine being their own or belonging to people they care about (such as family members) or care for (such as a clinician’s patients) than to the hidden, “statistical” deaths reported in accounts of the population-level tolls of the crisis

Yet such views represent a second reason for the broad endorsement of policies that prioritize saving visible, immediately jeopardized lives: that humans are imbued with a strong and neurally mediated3 tendency to predict outcomes that are systematically more optimistic than observed outcomes

A third driver of misguided policy responses is that humans are present biased, ie, people tend to prefer immediate benefits to even larger benefits in the future.

Even if the tendency to prioritize visibly affected individuals could be resisted, many people would still place greater value on saving a life today than a life tomorrow.

Similar psychology helps explain the reluctance of many nations to limit refrigeration and air conditioning, forgo fuel-inefficient transportation, and take other near-term steps to reduce the future effects of climate change

The fourth contributing factor is that virtually everyone is subject to omission bias, which involves the tendency to prefer that a harm occur by failure to take action rather than as direct consequence of the actions that are taken

Although those who set policies for rationing ventilators and other scarce therapies do not intend the deaths of those who receive insufficient priority for these treatments, such policies nevertheless prevent clinicians from taking all possible steps to save certain lives.

An important goal of governance is to mitigate the effects of these and other biases on public policy and to effectively communicate the reasons for difficult decisions to the public. However, health systems’ routine use of wartime terminology of “standing up” and “standing down” intensive care units illustrate problematic messaging aimed at the need to address immediate danger

Second, had governments, health systems, and clinicians better understood the “identifiable victim effect,” they may have realized that promoting flattening the curve as a way to reduce pressure on hospitals and health care workers would be less effective than promoting early restaurant and retail store closures by saying “The lives you save when you close your doors include your own.”

Third, these leaders’ routine use of terms such as “nonpharmaceutical interventions”9 portrays public health responses negatively by labeling them according to what they are not. Instead, support for heavily funding contact tracing could have been generated by communicating such efforts as “lifesaving.

Fourth, although errors of human cognition are challenging to surmount, policy making, even in a crisis, occurs over a sufficient period to be meaningfully improved by deliberate efforts to counter untoward biases

Cognitive errors result from incomplete information or the inability to analyze the information that is available. These cognitive errors can be classified as either belief perseverance or processing errors

Processing errors occur when an individual fails to manage and organize information properly, which can be due in part to the mental effort required to compute and analyze data.

Conservatism bias, where people emphasize original, pre-existing information over new data.

Base rate neglect is the opposite effect, whereby people put too little emphasis on the original information. 

Confirmation bias, where people seek information that affirms existing beliefs while discounting or discarding information that might contradict them.

Anchoring and Adjustment happens when somebody fixates on a target number, such as the result of a calculation or valuation.

Hindsight bias occurs when people perceive actual outcomes as reasonable and expected, but only after the fact.

Sample size neglect is an error made when people infer too much from a too-small sample size.

Mental accounting is when people earmark certain funds for certain goals and keep them separate. When this happens, the risk and reward of projects undertaken to achieve these goals are not considered as an overall portfolio and the effect of one on another is ignored.

Availability bias, or recency bias skews perceived future probabilities based on memorable past events

Framing bias is when a person will process the same information differently depending on how it is presented and received.

Cognitive errors in the way people process and analyze information can lead them to make irrational decisions which can negatively impact business or investing decisions

. These information processing errors could have arisen to help primitive humans survive in a time before money or finance came into existence.

It can occur when a physician refuses to consider alternative diagnoses once an initial diagnosis has been established, despite contradicting data, such as lab results. This bias leads physicians to see what they want to see

Anchoring bias is closely related to confirmation bias and comes into play when interpreting evidence. It refers to physicians’ practices of prioritizing information and data that support their initial impressions, even when first impressions are wrong

When physicians move from deliberation to action, they are sometimes swayed by emotional reactions rather than rational deliberation about risks and benefits. This is called the affect heuristic, and, while heuristics can often serve as efficient approaches to problem solving, they can sometimes lead to bias

Further down the treatment pathway, outcomes bias can come into play. This bias refers to the practice of believing that good or bad results are always attributable to prior decisions, even when there is no valid reason to do so

The dual-process theory, a cognitive model of reasoning, can be particularly relevant in matters of clinical decision making

This theory is based on the argument that we use 2 different cognitive systems, intuitive and analytical, when reasoning. The former is quick and uses information that is readily available; the latter is slower and more deliberate.

Consideration should be given to the difficulty physicians face in employing analytical thinking exclusively. Beyond constraints of time, information, and resources, many physicians are also likely to be sleep deprived, work in an environment full of distractions, and be required to respond quickly while managing heavy cognitive loads

Simply increasing physicians’ familiarity with the many types of cognitive biases—and how to avoid them—may be one of the best strategies to decrease bias-related errors

The same review suggests that cognitive forcing strategies may also have some success in improving diagnostic outcomes

Afterwards, the resident physicians were debriefed on both case-specific details and on cognitive forcing strategies, interviewed, and asked to complete a written survey. The results suggested that resident physicians further along in their training (ie, postgraduate year three) gained more awareness of cognitive strategies than resident physicians in earlier years of training, suggesting that this tool could be more useful after a certain level of training has been completed

A 2013 study examined the effect of a 3-part, 1-year curriculum on recognition and knowledge of cognitive biases and debiasing strategies in second-year residents

Cognitive biases in clinical practice have a significant impact on care, often in negative ways. They sometimes manifest as physicians seeing what they want to see rather than what is actually there. Or they come into play when physicians make snap decisions and then prioritize evidence that supports their conclusions, as opposed to drawing conclusions from evidence

Fortunately, cognitive psychology provides insight into how to prevent biases. Guided reflection and cognitive forcing strategies deflect bias through close examination of our own thinking processes.

During medical education and consistently thereafter, we must provide physicians with a full appreciation of the cost of biases and the potential benefits of combatting them.

The students who’d been told they were almost always right were, on average, no more discerning than those who had been told they were mostly wrong.

In the second phase of the study, the deception was revealed. The students were told that the real point of the experiment was to gauge their responses to thinking they were right or wrong.

Once again, midway through the study, the students were informed that they’d been misled, and that the information they’d received was entirely fictitious. The students were then asked to describe their own beliefs

The students who’d received the first packet thought that he would avoid it. The students in the second group thought he’d embrace it.

One implication of the naturalness with which we divide cognitive labor,” they write, is that there’s “no sharp boundary between one person’s ideas and knowledge” and “those of other members” of the group

Humans’ biggest advantage over other species is our ability to coöperate. Coöperation is difficult to establish and almost as difficult to sustain

Reason is an adaptation to the hypersocial niche humans have evolved for themselves

Consider what’s become known as “confirmation bias,” the tendency people have to embrace information that supports their beliefs and reject information that contradicts them

Of the many forms of faulty thinking that have been identified, confirmation bias is among the best catalogued; it’s the subject of entire textbooks’ worth of experiments

Even after the evidence “for their beliefs has been totally refuted, people fail to make appropriate revisions in those beliefs,” the researchers noted. In this case, the failure was “particularly impressive,”

The 76ers were shocked by the evidence.

Why, then, do we believe in the hot hand? Confirmation bias is to blame

It's at this point that our faulty reasoning mechanisms kick in, as we start ignoring the misses and focusing on the makes

In other words, we seek out evidence that confirms our suspicions of streakiness. The end result is that a mental fiction dominates our perception of the game.

Why'd they do this? Tversky and Gilovich were interested in testing the "hot hand" phenomenon, which occurs when NBA players are convinced that they're hot, on a roll, in the zone.

This is the sort of mental mistake that seems ripe for fixing by natural selection, since it always leads to erroneous beliefs and faulty causal theorie

We'd be a hell of a lot smarter if we weren't only drawn to evidence that confirms what we already believe.

And this leads me to a fascinating and provocative new theory of reasoning put forth by Hugo Mercier and Dan Sperber. In essence, they argue that human reason has nothing to do with finding the truth, or locating the best alternative.

Instead, it’s all about being able to argue with others:

Needless to say, this new theory paints a rather bleak portrait of human nature

Instead, the function of reasoning is rooted in communication, in the act of trying to persuade other people that what we believe is true. We are social animals all the way down.

The search for linguistic universals yielded interesting data on languages, but after decades of work, not a single proposed universal has withstood scrutiny. Instead, as linguists probed deeper into the world's languages (7,000 or so, only a fraction of them analyzed), innumerable unpredictable differences emerged.

In the past decade, cognitive scientists have begun to measure not just how people talk, but also how they think, asking whether our understanding of even such fundamental domains of experience as space, time and causality could be constructed by language.

About a third of the world's languages (spoken in all kinds of physical environments) rely on absolute directions for space.

As a result of this constant linguistic training, speakers of such languages are remarkably good at staying oriented and keeping track of where they are, even in unfamiliar landscapes.

People rely on their spatial knowledge to build many other more complex or abstract representations including time, number, musical pitch, kinship relations, morality and emotions.

And many other ways to organize time exist in the world's languages. In Mandarin, the future can be below and the past above. In Aymara, spoken in South America, the future is behind and the past in front.

Beyond space, time and causality, patterns in language have been shown to shape many other domains of thought. Russian speakers, who make an extra distinction between light and dark blues in their language, are better able to visually discriminate shades of blue.

Patterns in language offer a window on a culture's dispositions and priorities.

Languages, of course, are human creations, tools we invent and hone to suit our needs

Simply showing that speakers of different languages think differently doesn't tell us whether it's language that shapes thought or the other way around. To demonstrate the causal role of language, what's needed are studies that directly manipulate language and look for effects in cognition.

Although it is at pains to point out that it does not believe language can be preserved unchanged, it worries that communication is at risk of becoming far less effective. “Some changes would be wholly unacceptable, as they would cause confusion and the language would lose shades of meaning

“Without grammar, we lose the agreed-upon standards about what means what. We lose the ability to communicate when respondents are not actually in the same room speaking to one another. Without grammar, we lose the precision required to be effective and purposeful in writing.”

At the same time, our laziness and imprecision are leading to unnecessary bloating of the language – “language obesity,”

That’s five writers, across a span of 400 years, all moaning about the same erosion of standards. And yet the period also encompasses some of the greatest works of English literature.

Since then, the English-speaking world has grown more prosperous, better educated and more efficiently governed, despite an increase in population. Most democratic freedoms have been preserved and intellectual achievement intensified.

Linguistic decline is the cultural equivalent of the boy who cried wolf, except the wolf never turns up

Our language will always be as flexible and sophisticated as it has been up to now. Those who warn about the deterioration of English haven’t learned about the history of the language, and don’t understand the nature of their own complaints – which are simply statements of preference for the way of doing things they have become used to.

But the problem is that writers at that time also felt they were speaking a degraded, faltering tongue

Seventy-odd years ago, people knew their grammar and knew how to talk clearly. And, if we follow the logic, they must also have been better at organising, finding things out and making things work.

Hand-wringing about standards is not restricted to English. The fate of every language in the world has been lamented by its speakers at some point or another.

“For more than 2,000 years, complaints about the decay of respective languages have been documented in literature, but no one has yet been able to name an example of a ‘decayed language’.” He has a point.

One common driver of linguistic change is a process called reanalysis.

Another form that linguistic change often takes is grammaticalisation: a process in which a common phrase is bleached of its independent meaning and made into a word with a solely grammatical function

One instance of this is the verb “to go”, when used for an action in the near future or an intention.

Human anatomy makes some changes to language more likely than others. The simple mechanics of moving from a nasal sound (m or n) to a non-nasal one can make a consonant pop up in between

The way our brain divides up words also drives change. We split them into phonemes (building blocks of sound that have special perceptual significance) and syllables (groups of phonemes).

ound changes can come about as a result of social pressures: certain ways of saying things are seen as having prestige, while others are stigmatised. We gravitate towards the prestigious, and make efforts to avoid saying things in a way that is associated with undesirable qualities – often just below the level of consciousnes

The problem arises when deciding what might be good or bad. There are, despite what many people feel, no objective criteria by which to judge what is better or worse in communication

Though we are all capable of adaptation, many aspects of the way we use language, including stylistic preferences, have solidified by our 20s. If you are in your 50s, you may identify with many aspects of the way people spoke 30-45 years ago.

The irony is, of course, that the pedants are the ones making the mistakes. To people who know how language works, pundits such as Douglas Rushkoff only end up sounding ignorant, having failed to really interrogate their views

Begin to build boundaries by starting with the easy stuff, whatever that means for you

This one is relatively simple: don’t have television news on in the background (or better, a news podcast). Clean up the passive background noise

Assess the situation

Figure out your main problem area

Choose what, when, where, and how

“What level of news is going to make me feel suitably up-to-date and responsible without driving me insane? Recognize that may be a moving target and that it’s going to be extremely difficult to stick with, but at least have some kind of goal.

A word on the “when” part 

Sometimes this means buying an alarm clock and putting your phone in a different room/closet than the one where you sleep. 

Ask for help

Who profits from my fear, my elation, my outrage? It’s a nice question to keep in the back of one’s head when you’re down the rabbit hole—especially when you’re not really getting much out of it, but just half-remembered ideas about what you’re reading and why.

When you learn a new piece of information through social media, think to yourself: “This may be true, but it also may be false,”

2. Find out who is making the claim.

When you encounter a new claim, look for conflicts of interest. Ask: Do they stand to profit from what they say? Are they affiliated with an organization that could be swaying them? Two other questions to consider: What makes the writer or speaker qualified to comment on the topic? What statements have they made in the past?

3. Watch out for the halo effect.

The halo effect, says Frans, “is a cognitive bias that makes our feeling towards someone affect how we judge their claims.

If we dislike someone, we are a lot more likely to disagree with them; if we like them, we are biased to agree.”

New scientific papers under review are read “blind,” with the authors’ names removed. That way, the experts who are deciding whether it’s worthy of publication don’t know which of their fellow scientists wrote it so they’ll be able to react free from pre-judgement or bias.

4. Look at the evidence.

Before you act on or share a particularly surprising or enraging story, do a quick Google search — you might learn something even more interesting.

5. Beware of the tendency to cherry-pick information.

Another human bias — confirmation bias — means we’re more likely to notice stories or facts that fit what we already believe (or want to believe).

When you search for information, you should not disregard the information that goes against whatever opinion you might have in advance.”

In your own life, look for friends and acquaintances on social media with alternative viewpoints. You don’t have to agree with them, or tolerate misinformation from them — but it’s healthy and balanced to have some variety in your information diet.

6. Recognize the difference between correlation and causation.

However, she says, “there is no evidence supporting these claims, and it’s important to remember that just because two things increase simultaneously, this does not mean that they are causally linked to each other. Correlation does not equal causality.”