How social learning made us hugely successful as a species
Nicholas Christakis: We are very unusual as a species in that not only do we have the capacity to learn-- many species do this. A fish in the sea learns that if it swims towards the light it will encounter prey there. We also have the capacity for social learning, which itself is unusual and interesting-- that is, we can learn from each other. And social learning is extremely efficient. For example, I can put my hand in the fire and learn that that's hot and pull my hand out. So I have gotten some benefit of knowledge, but I've paid a price. Or I could watch you put your hand in the fire, get almost as much benefit learning that fire is dangerous, and pay none of the price. So watching from you and learning from you by social learning and imitative learning is extremely efficient. But we not only do that, we teach each other.
We affirmatively set out to teach each other stuff. This is very rare in the animal kingdom. In fact, this aspect of our species lies at the core of our capacity for culture, which is the capacity to transmit knowledge across place and time. So we carry with us the benefits of all the innovations and all the learning that had been done by all prior members of the human species, carried forward unto this day. And when we learn something new, we transmit it laterally to other people. This fundamental quality of teaching also actually has political implications. Because if we are actually to effectively teach and learn from each other, we must create environments that support free and open expression.
How are we to learn from each other? How are we to acquire novel information? How are we to work together to establish the truth of our environment if we don't affirmatively foster and support this rather wonderful innate quality that we have to teach and learn from each other. We are innately a friendly species, but we need environments which allow us to optimally express our inclination to be friendly. We don't want, for example, environments in which we're pitted against each other, where we have leaders that are kind of saying, these people are responsible for your problems. We want environments which say, we can be united in our common humanity. And analogously, we want environments which are supportive and conducive to teaching and learning. We want environments-- we want to create environments in which we maximize the flow and the spread of information.
Some of the most foundational liberties that we have that are encapsulated in the Bill of Rights, by some kind of implicit or deliberate insight by the founding fathers, actually speak to these fundamental qualities that we evolved to have. For example, the freedom of assembly is enshrined in constitutions around the world, including ours. The freedom of speech is enshrined in our constitution, and many others as well. These are innate desires that we have to talk to and learn from each other, To assemble and connect with each other. And they are seen as fundamental political principles and have been since our founding.
- What distinguishes humans is social learning — and teaching.
- Crucial to learning and teaching is the value of free expression.
- And we need political leaders who support environments of social peace and cooperation.
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Nazi supporters held huge rallies and summer camps for kids throughout the United States in the 1930s.
- During the 1930s, thousands of Americans sympathized with the Nazis, holding huge rallies.
- The rallies were organized by the American German Bund, which wanted to spread Nazi ideology.
- Nazi supporters also organized summer camps for kids to teach them their values.
A Bund parade in New York, October 30, 1939.
Credit: Library of Congress
Credit: Herald Tribune
Postcards from Camp Siegfried
Tea and coffee have known health benefits, but now we know they can work together.
Credit: NIKOLAY OSMACHKO from Pexels
- A new study finds drinking large amounts of coffee and tea lowers the risk of death in some adults by nearly two thirds.
- This is the first study to suggest the known benefits of these drinks are additive.
- The findings are great, but only directly apply to certain people.
Maybe you should enjoy this article with a cup of coffee or tea.<p> The <a href="https://drc.bmj.com/content/8/1/e001252?T=AU" target="_blank" rel="noopener noreferrer">study</a> involved 4,923 type 2 diabetics living in Japan. The average participant was 66 years old. All of the participants were taken from the rolls of the Fukuoka Diabetes Registry, a study geared at learning about the effects of new treatments and lifestyle changes on the health of diabetics. <br> <br> The participants filled out questionnaires concerning their health, diet, habits, and other factors. Among the questions were two focused on determining how much green tea or coffee, if any, the participants consumed over the course of a week. The health of the participants was recorded for five years. During this time, 309 of the test subjects died from a variety of causes. <br> <br> Subjects who drank more than one cup of tea or coffee per day demonstrated lower odds of dying than those who had none. Those who consumed the most tea and coffee, more than four and two cups a day, respectively, enjoyed the most significant reductions in their risk of death. This level of consumption was associated with a 40 percent lower risk of <a href="https://www.sciencedaily.com/releases/2020/10/201020190129.htm" target="_blank" rel="noopener noreferrer">death</a>. </p><p>Most interestingly, the effects of drinking tea and coffee appear to combine to reduce risk even further. Those who reported drinking two or three cups of tea a day and two or more cups of coffee were 51 percent less likely to die during the study, while those who drank a whopping four or more cups of tea and two or more cups of coffee had a 63 percent lower risk of <a href="https://www.medicalnewstoday.com/articles/diabetes-coffee-and-green-tea-might-reduce-death-risk" target="_blank" rel="noopener noreferrer">death</a>. </p>
So, should I start swimming in a vat of coffee and green tea?<iframe width="730" height="430" src="https://www.youtube.com/embed/LY0E-JQxeoY" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe><p> Not quite. </p><p> The primary takeaway from this study is that Japanese adults with type 2 diabetes who drink a lot of green tea and/or coffee die less often than similar people who do not. If this effect is caused by something in the drink, lifestyle choices people who drink that much tea all make, or something else remains unknown. The finding must be considered an association at this point. <br> <br> The eye-popping reductions in mortality rates are compared to the risk of death of others in the study. The people who died reported drinking less tea and coffee than those who lived. Unless you have several demographic and conditional similarities to the subjects of this study, you probably won't suddenly be at a two-thirds lower risk of death than your peers because you drink green tea. </p><p> Like all studies that depend on self-reporting, it is also possible that people misstated how much they consumed any one item. The study also did not look into other factors like socioeconomic status or education level, also known to impact death rates and potentially linked to coffee and tea consumption. </p><p> However, it is yet another study in the pile that suggests that <a href="https://www.healthline.com/nutrition/top-13-evidence-based-health-benefits-of-coffee" target="_blank" rel="noopener noreferrer">coffee</a> and <a href="https://www.healthline.com/nutrition/top-10-evidence-based-health-benefits-of-green-tea" target="_blank" rel="noopener noreferrer">green tea</a> are good for you. That much is increasingly <a href="https://www.health.harvard.edu/press_releases/health-benefits-linked-to-drinking-tea" target="_blank" rel="noopener noreferrer">agreed</a><a href="https://www.rush.edu/health-wellness/discover-health/health-benefits-coffee" target="_blank" rel="noopener noreferrer"> upon</a>. This study also suggests the benefits are additive, which is a new development.</p><p><br> So, while it isn't time to start the IV drip of green tea, a cup or two probably won't <a href="https://www.webmd.com/diabetes/news/20201022/coffee-green-tea-might-extend-life-for-folks-with-type-2-diabetes" target="_blank" rel="noopener noreferrer">hurt</a>. </p>
Meteorologists propose a stunning new explanation for the mysterious events in the Bermuda Triangle.
One of life's great mysteries, the Bermuda Triangle might have finally found an explanation. This strange region, that lies in the North Atlantic Ocean between Bermuda, Miami and San Juan, Puerto Rico, has been the presumed cause of dozens and dozens of mind-boggling disappearances of ships and planes.
But most city dwellers weren't seeing the science — they were seeing something out of Blade Runner.
On Sept. 9, many West Coast residents looked out their windows and witnessed a post-apocalyptic landscape: silhouetted cars, buildings and people bathed in an overpowering orange light that looked like a jacked-up sunset.