Intelligent, vault and volumes go from the initial guess id we shouldnt lose sight of the fact that in the course of all that pollution, we dont even make up a blink of an eye when taking certain tests, we fair worse than chimpanzees. For example. One comes on, this goes to show just how limited our working memory is by on right now. The human can barely managed to remember more than 3 numbers in the correct position and sequence in the short amount of time. And for that, so a know so you, this young chimpanzee does it with an instinctive certainty. So, to pansies, can beat us and the numbers test, and yet were developing highly complex technologies that doesnt seem to add up a minus the 2 are connected. What if were losing our brain capacity because of our intentions . Who drives anywhere without a Navigation System or memorize this phone numbers these days . That is Artificial Intelligence doing too much of the thinking for us to determine whether homo sapiens are truly in a downswing. First, we have to define the basics. What is intelligence anyway . Yeah. Intelligence intelligence is the ability to think logically and to reason. I think its all got to do with some cognitive reserves or thinking outside the box. Im energy does. It comes down to our brains capacity to solve problems here, and thats whats measured on intelligence tests and against test fax. The 2nd, somewhat academic definition of intelligence, namely how high you score an i q test and an intelligence test. And why im into the guns test option. The 1st modern intelligence test was developed by french psychologist, else would be ne, in 19 o 4. The intention wasnt to identify the brightest students. Rather, the ones falling behind as cop conduct a live of children who didnt learn to read rice and do mathematics in the time it was supposed to take. Its no matter how, how the teachers tried on focusing on going to all intelligence tests, but also develop to determine who needed special education. During the 1st world war, the us military use the test to find qualified officers but there were also more sinister uses. Intelligence tests were intended to read out supposedly weak genes. Denazis term for it was racial hygiene time because theres been some cases when intelligence tests were administered to people from traditional cultures in africa. They couldnt do them simply because they have never before seen a circle or a square like that. So use a pharmacy and then they were deemed unintelligence guys. Today, universities and private high schools use intelligence tests to screen applicants in criminal proceedings. A very low i q can have a mitigating effect for sentencing tests are also used in psychotherapy, with children and adolescents, for example, to indicate developmental potential the tones, what sound is to music . Not all intelligence tests are just about numbers, but why would your language so see . Yeah, thoughts as a sound as to music as word is to language d, all the questions can be linguistic and nature. For example, you asked to evaluate the similarity between words couldnt be and they can be numerical questions and theyre also federal exercises. Outcomes. The missing will take the good 5. It. There are objects that have to be folded or rotated mental exercises sizes. And these are all activities that essentially try to split our thinking into adams ones, the ones that didnt come into a tool to split tests like these boil intelligence down to a single numerical value, the intelligence quotient, or i q, intelligence, it seems is measurable. But those criticism couldnt be decent test if this test cant be used to measure other aptitude that are also extremely important for its actually such as social skills, emotional competencies for, for example, orienting yourself in the steps in the industry step uh, the 1st i need to take one criticism or centers on the compatibility of different cultures. I to critique is another critique, is that it doesnt measure a very important aspect, which is finding a new solution in a new situation or what we call creativity of clay. Actually, we take the, the, in the end, it comes down to how we define intelligence. In science. Im in favor of defining the things that you can define not only in monday, if you can isolated cognitive intelligence. But you can, then you shouldnt load the concept of intelligence with things that dont belong to it. In dispute, like thats what we want. Lets focus on cognitive intelligence is, which is by and large with i q test to measure. Interestingly, its distributed in a population in the same way as height. For example, somebody for normal distribution means measured values are spread out like this. There are a loss in the middle and fewer at the extremes. Its also called the bulk of an i q score of 130. 00 or higher is considered highly gifted. Below 70 is considered learning disabled. These extremes account for 2 percent of the population. The how have these scores changed over time . This researchers spent his life studying data to answer that question. James flynn. He collected and evaluated millions of i q test results from dozens of countries recorded over decades in 1984. And he concluded that humans arent getting smarter. Theyre going to observe that starting after 1913 i q scores increased by 4 points every 10 years of production is described as the flint effect size of them on screen effect. The plaintiff act based on i q scores, he noted an average li, intelligent person from 1984 would have been considered highly gifted around 1900 homeless ascending. Why does it rise in the 1st place . Just imagine ethically people havent changed from quite new smartness. Genes have come along the last those under 10000 years without seen 1000 job and so become what happened to make the scores climb within just a few decades of we have better nutrition, better medical care, we have more widespread education, but we have to keep in mind that education has really only evolved like this in the last 60 years, the so at 5 to lease and i was learning to read and rise and do mathematics in a rather challenging way. So thats what led to develop your intellectual potential point in 5 to con. Education, new attrition and medicine have all played a part in making people smarter. But theres another factor our working world. In the early 20th century, nearly half of the labor force in developed countries worked in agriculture. They did physical labor. There was no need to engage an abstract thinking. Intelligence researchers asked farmers for example, what fish and crows have in common. Non farmers might answer their both animals, but the farmers answered nothing. I can eat a fish, but not a crow. They related everything to their Living Environment and didnt really abstract beyond that. Over the course of the 20th century, our every day environments became one that prompted us to think more in hypotheticals. Many people no longer fished and instead became more skilled with numbers and letters. More people live in cities with more complex social dynamics and more technical applications. And that means our brains are also more challenged for one coincide. And if im, when our brains are more challenged in our child who didnt have the lessons, they make nor connections to accommodate them, we have more synopsis, which is one mind start brings computational power once you take the skills all small. And we also knew that brings that are used more work faster thats in. So mankind in general was soaring to f or Greater Heights of intelligence. I q tests have to be, be calibrated every few years. But in 2004 Norwegian Research has discovered the slit effect no longer held. In fact, i q scores had been dropping slightly since the mid 19 ninetys. That was quite a shock since then researchers have been trying to find out why and theres no easy explanation. In fact, many attempts to rationalize that are problem matic and hotly debated within societies. In 2016 german psychologist kind of and im on survey the International Research community on the causes of decreasing i q scores. Some researchers suggested that less educated immigrants might be dragging down average i q scores. Authors speculated that more intelligent people are likely to have fewer children than less intelligent people. Such hypotheses were reminiscent of the nazis theory of bad genes. When you months out of students rise on my exam, that 80 percent of intelligence is hereditary and 20 percent as environmental. Theyre going to flunk buttons when keep the one well assume that thousands of teen variations distributed over the entire genome contribute to a persons essential intelligence. A person is also had a good chance to develop his or her intent. Attendance in one stop. And of course, that depends a little bit on heredity because what you get from your parents is a source of loss, right . Funds on is on content with homes. In 2018, a norwegian studies showed that migration does not play a decisive role in following. I qs because scores are also declining within families. For example, between father and son or older and younger sibling. Other studies have shown that heredity is not to blame for our decreasing average intelligence. So what can be causing it . The i think chemical pollution is the main fact that we have data from the United Nations showing that a chemical production has increased 300 fold since the 1970s. We find them every re, with in the soil, in the water, in the food we eat in the air we breathe, especially plastic wrappings and things like that. Cause metrics. I never went cause much fix with the serious that ended. Couldnt disrupt are chemicals in certain products interfere with our hormonal balance. Theyre linked to the reasons why more and more people are getting diseases like cancer and diabetes. But the thyroid gland is especially affected. And theres both epidemiological and Experimental Evidence to show is that firewood hormones, this is necessary for brain development. And without firewood hormones, you have a less efficient brain. So not only are we running our planet into the ground, were bringing our intelligence down with it. So many tammy Cool Solutions that are increasing, you know, mercury, which is found in fish to fluoride plastics, bpa, etc. So the, the increases exponential, the harm fullness of undercurrent. Disrupters is undisputed, but whats less clear is how much of an impact they have on our intelligence. Clock is to think of continuous course. These things could greatly impair our intelligence is real, but whether they really affect middle class people who live in a healthy environment, whether they have that strong of an impact as another question and of ok, neros science puts forward another theory for declining i. Q scores isnt unfolding, we know from psychological experiments, but humans can process about 11. 00 to 60. 00 bits per 2nd and con. Spot 11000000 bits are flooding our brains every 2nd. But its not as if in the past our brains were able to process more stimuli either. Why are we only getting dumber now . Doesnt pull named or digging . Sorry, thats the problem of the modern age, the out them, we have a definite linear increase of interesting information spreading across our online world. And an excellent answer honestly for that we have an exponential increase in bold. And bo is the problem. Events, industry. And if youre no longer able to focus on certain stimuli, because youve trained yourself out of that ability by the fee, because youre not going to be able to complete these types of exercises, unintelligence tests effectively against the test of um, if you tend to. But thats how this has been substantiated in a number of different studies. And it was almost an especially convincing one was done at stanford with stanford students for some of the Top Performing students in the united states. And it was on the 500. 00 students were divided into 3 groups for an intelligence test. The 1st heather smartphones taken away, the 2nd were simply told to turn them off, and the 3rd were allowed to have them on. The 3rd Group Performed the worst, and even the group with their cellphones turned off did significantly worse than the group that didnt have them in the room. So were getting dumber because were too distracted by new media. But isnt that an angel narrative that new technologies are doing us harm . Even when writing was invented, people feared that memory would suffer because we end up writing everything down. But where would we be without our inventions, thoughts, i shall manage for as long as weve been making technical inventions. And people have been trying to source certain tasks for loc 1st, and we try to make the field work easier for ourselves and come to then printing came along. So we no longer have to copy out every bit and know we no longer have to knew how to navigate for me to be because instead we can be guided on longer criminals online. And also do you want to mention all you have to you have a special orientation skills are getting much worse because we dont need them anymore. As we have all kinds of navigation apps on the iphone. Even as far as special orientation is getting worse, isnt really harming our brains to use Navigation Systems or Search Engines. When finished things my life for uses and things repeatedly at some point, connections in the brain tend to loosen up until color. And learning is a little about making connections between stimuli and responses that was the, the full lights and the ones that youll stay looking for. And this one does that, why stimulus triggers another that so some behavior triggers may a stimuli that is what defines learning. And then if we stop doing that, it gets low, it does tend to, okay, so we lose a point or 2 on an i q test. Isnt that just the result of us adapting to our environment . With the invention of electricity, our fire making skills fell by the wayside. Whats the problem . Were freeing up our capacity to make room for new things. The top section is just the so people tend to think its great that theres less children and young people need to know. Youre going to see a few minutes a trade off. And they can be more creative and innovative because they can fill up their brains hard drive differently from them. And this is a fundamental error in thinking about new or biology because we dont have a hard drive in our heads noise nannan. When we learn something new, the brains, hardware and software change, that means functionally, the nerve cells interconnections change. The brain also changes structurally. And so we all proceed. The world is very differently. For example, your moms, if you walk through the country side with someone who studies vault and youll recognize farmer grasses and trees and the links between them that someone has out of that ceiling. Switching, dean of human deals and each of the highest of them. So the decisive argument for why we still need to know a lot is that when we do, we perceive the world in far greater nuances. Indeed we think and go about life and more sophisticated ways when we have more knowledge. And by the way, it actually helps us use Search Engines because we can ask more precise questions. It seems a harder and here we thought we finally moved away from memorization. When each deutsche, the, if i were a gym and teacher, my students would have to read 6 books. Theres not a single picture and so they wouldnt lose that skill for each type. Even the final one, if i were to geography teacher, id say its great emphasis on reading maps, not caught media. So, but as i think its still important in our day and age and nobody got so that even though we have navigation devices, the guess is from a to b. And we have a general understanding of how the world is structured is what constitutes that are what countries that are taking and how they relate to each other geographically. So that sounds and um, and then we can learn to use navigation devices on top of that for most of us on this. And its a bit like the pocket calculator, which weve done right. The consulting you by the 7th grade, everyone has to understand the number range fall in the home to include in the skate image. So thats not going back to the days of sleep, visually memorizing things just so we knew them by heart and soul. Its about planting seeds of knowledge in our brains that we can use to piece together the world with our eyes wide open, often and all of us david, sweet chief is speech. The depth is more important than bread. Now we listen to music. Thats a short as 2 minutes. You go to all of us. I think the average listening time on spotify is one and a half minutes. 2 sentences in text. We read hardly have any relative clauses anymore. Theyre getting shorter and shorter. The vocabulary we use is shrinking. Its all too fast. We need to go into more depth and 50 to get the but how do we do that . We cant turn back time. It would likely end up a balancing act, integrating new technology in a way that lets us hold on to certain skills the, the biggest test center for me, its crucial that we improve our self discipline based on essentially we need to get the juices flowing in our parental cortex, which is responsible for all these skills, more often than we currently do. Hi, siegel so i to who wouldnt want to have their frontal cortex and talk for him. It sounds a bit theoretical, but there are actually exercises for it to me, not so hard either the content how to we train our ability to concentrate when we meditate. For example, it could be something simple, 10 minutes dont easily incorporate it into our daily routine. Thats the last set, an alarm for 5 minutes and then tried to shut out everything in the outside world or listen to close your eyes and just observe whats going on. And my buddy was comes one head slugs through. Can i feel my heart beat and how does my breathing . Why dont i do my muscles feel mine . And can i feel all the way down to my legs . If all my cods 10, after 5 minutes, the alarm clock goes off and i press it once and im open my eyes and do the reverse. To move on, i simply observe whats happening all around me up. I tried to push out all the distracting thoughts for thats a good exercise thats been shown to enhance concentration, photos of these, practicing self discipline meditation, not getting distracted as often even reading more. These are all things that have a positive impact on our intelligence. So what do we do about all the chemicals that may be harming our brains . Well, we can add rooms our, um, uh, feed organic food. Uh, thats grown with less pesticides, use less cosmetics. And there have been a number of studies showing that i have the content of food in vegas is insufficient. And its not just among beacons. About one out of 3 european adults does not consume enough iodine and iodine deficiency effects probably would function and can Impact Brain Development the if we could get a handle on all of this. The chemicals and the stimuli. If we could learn more deeply and use fewer technological aids, could our intelligence return to an upswing even experience a new flint effect . Even the longer the best, lets say we lived in the best of all developmental worlds called children. All young people are ultimately nourished, ultimately educated in school for optimally talented and motivated. Then at some point, wed find that because of our genetic disposition, our brains can work any faster and we take the ceiling that can effect a window for you. But an area where theres still a ways to go as the investment of our intelligence and knowledge. And we need to distinguish between intelligence, which is the role of materials and investing that in knowledge. In this, we need to learn mathematics and we need to understand abstract concepts and physics. We need a rough idea of how electricity gets into the socket and theres tremendous potential for improving that. Id give it to somebody, so im kind of in one question remains. Why is this chimpanzee better at this number exercise . Then we are, i guess ill just jump on z is no better proceed than all humans. A 68 year old child perform similarly well screwed up. So one kind of adults keep up with either chips or children and this is what we have to make sure to bring together different spears of knowledge very quickly and kind of, we can only do that if were highly selective with knowledge. The thing may have, thats why we want me to remember a fraction of what we experience in a given situation. So sometimes even 5 numbers can be too many. So the fact that the chimpanzee is faster says something about the strength of the human brain. We to note millions of stimuli to focus on the important things. But our brains can also forget above all, theyre constantly changing. And fortunately, we can find out how the the, the new techniques for Wildlife Preservation channel water simple to use to unlock biodiversity, dna. How can a i to use to figure out the secret lives of animals in biochemistry . Explain why some creatures low in the dark blue. These new Research Methods revolutionize our way of thinking tomorrow to do next on dw, the can you hear me name . Sure we are all set im were watching closely. 7 team to ring of the story behind the news. We all about unbiased information, feel free mind. So do to mention done i imagine that youre eating a hamburger and as youre biting into this juicy burner, your dining companion says to you, actually the hamburger is not made from cows. Its made from golden retrievers. 2 2 2 2 2 2 2 2 2 in meeting cultures around the world, people learn to classify small handful of animals with edible and all the rest they classify as disgusting. A donkey series about our complex relationship with them and also need to be watch. Now on youtube, d. W documentary, the bio diversity, genetic engineering, animal behavior, and also the visual intelligence. Drones by syria and split the clue how the Animal Kingdom helps for the science coming up on the show, the content to the new edition of tomorrow today. Gelata is also known as bleeding heart monkeys live in the field