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Humans Choose Friends With Similar DNA

KentuckyFC writes "The study of social networks has long shown that people tend to pick friends who are similar to them — birds of a feather stick together (PDF). Now a study of the genomes of almost 2000 Americans has found that those who are friends also share remarkable genetic similarities. 'Pairs of friends are, on average, as genetically similar to one another as fourth cousins,' the study concludes. By contrast, strangers share few genetic similarities. The result seems to confirm a 30-year-old theory that a person's genes causes them to seek out circumstances that are compatible with their phenotype. If that's the case, then people with similar genes should end up in similar environments and so be more likely to become friends."

137 of 204 comments (clear)

  1. How dare you!? by i+kan+reed · · Score: 4, Funny

    How dare you insult my friends by comparing them to me!

    1. Re:How dare you!? by ackthpt · · Score: 4, Funny

      How dare you insult my friends by comparing them to me!

      I wouldn't have anyone like myself as a friend.

      --

      A feeling of having made the same mistake before: Deja Foobar
    2. Re:How dare you!? by dkleinsc · · Score: 4, Funny

      Or, as Groucho Marx once put it, "I refuse to join any club that would have me as a member."

      --
      I am officially gone from /. Long live http://www.soylentnews.com/
    3. Re:How dare you!? by K.+S.+Kyosuke · · Score: 2

      I wouldn't have anyone like myself as a friend.

      So...I take it you're not on speaking terms with yourself? That must suck, seeing as you probably won't get rid of yourself any time soon.

      --
      Ezekiel 23:20
    4. Re:How dare you!? by Stormy+Dragon · · Score: 5, Interesting

      Groucho wasn't being self deprecating, he was mocking the anti-semitism of the time and how once he became famous, all these organizations that normally would never have considered letting someone Jewish join suddenly wanted him to become a member.

    5. Re:How dare you!? by K.+S.+Kyosuke · · Score: 1

      Would that not be more troubling if you are on speaking terms with yourself? People would think you are insane!

      But I *am* insane! Or at least seriously disordered. Now I wouldn't want to mislead people by trying to look normal, would I?

      --
      Ezekiel 23:20
    6. Re:How dare you!? by RedHackTea · · Score: 2

      On the contrary, this is great news for me! I can finally tell of my friends that I really am black (or at least my DNA must be very close to theirs) despite the countless marshmallow fluff jokes I've heard over the years!

      --
      The G
    7. Re:How dare you!? by bitt3n · · Score: 1

      I refuse to befriend anyone who would club me with his member.

  2. Re:Say it with me... by tsprig · · Score: 1

    ... white people are racist

    how dare you say white people are racist!

  3. Re:Bull by Score+Whore · · Score: 5, Insightful

    No kidding. I'm thinking that the majority of people live, breed and die within a few hundred miles of where they were born and this goes on generation after generation. One would expect a certain homogeneity in the range of genes within that population.

  4. Similar areas? by Anonymous Coward · · Score: 2, Interesting

    Was there a control for geographically similar area? If you live in certain areas like Appalachia, everyone you know is probably a fourth cousin. So of course your friends would be related to you.

  5. Re:A tad obvious by AtariEric · · Score: 2

    This is why I don't have friends - I'm not human.

    --
    Don't trust any concentration of power.
  6. Whatever the cause, the discovery that our friends are genetically similar to us has significant implications. “The subtle process of genetic sorting in human social relationships might have an important effect on a number of other biological and social processes,” say Christakis and Fowler.

    For example, germs, viruses and even information may spread more (or less) easily amongst groups that share a particular genetic background.

    So we evolved a tendency to monoculture, making us more vulnerable to disease? That would seem ... counterintuitive.

    1. Re:hmm by Bill,+Shooter+of+Bul · · Score: 2

      There are often trade offs in adaptations. Sickle cell animia isn't great, but having part of those genes wards off malaria. More vulnerable to disease, but having people who are like us around might lead to more social benefit. Like if a father dies, another man might take over if the children are similar to him.

      --
      Well.. maybe. Or Maybe not. But Definitely not sort of.
    2. Re:hmm by TheCarp · · Score: 2

      > So we evolved a tendency to monoculture, making us more vulnerable to disease?
      > That would seem ... counterintuitive.

      Not really, only if taken out of context and to the extreme. The relation between friends is states as about the same as a "fourth cousin". A fair amount of mixing happens even amongst the children of a single pair of parents with 2 copies of up to 4 possibilites being selected for each gene in each individual... fourth cousins is still enough room for quite a bit of diversity.

      Think of it like plant or animal breeding. Breeders generally don't take two dissimilar phenotypes breed them once, and then take their progeny and look to whole new lines. They call those the F1 and then breed them back with another of their own type.

      Is it really so surprizing that nature would have found the same trick for keeping some stability in the local gene pool? I mean, its hardly a case of "monoculture".

      --
      "I opened my eyes, and everything went dark again"
    3. Re:hmm by Valdrax · · Score: 1

      So we evolved a tendency to monoculture, making us more vulnerable to disease? That would seem ... counterintuitive.

      Actually, the study says the opposite. When it comes to immune system function, we strongly prefer people with different genes.

      --
      If it's for-profit but free, you're not the customer -- you're the product (e.g., the Slashdot Beta's "audience").
    4. Re:hmm by Sperbels · · Score: 1

      So we evolved a tendency to monoculture, making us more vulnerable to disease? That would seem ... counterintuitive.

      Not necessarily. It could be a simple side effect of our internal program that makes us social animals instead of solitary. So then perhaps the effect on disease vulnerability doesn't have a detrimental evolutionary effect greater than the evolutionary benefits of forming tribes.

    5. Re:hmm by CrimsonAvenger · · Score: 1

      So we evolved a tendency to monoculture, making us more vulnerable to disease?

      Monoculture? Hardly. Fourth cousins would, on average share 1/32 of their genes....

      --

      "I do not agree with what you say, but I will defend to the death your right to say it"
  7. 2000 Wyoming (or Montana, or Nebraska) citizens by rodrigoandrade · · Score: 3, Insightful

    I find this study to be extremely flawed, not to say elitist / racist.

    Yes, rednecks who listen to country music and drink cheap beer and whisky like to have friends who are also rednecks who listen to country music and drink cheap beer and whisky.

    If the study had been conducted with 2000 subjects from culturally diverse places, like NY or Tokyo, I'm sure the results would've been a lot diferent.

    I was going to post AC, but fuck it, I got karma to burn...

    1. Re:2000 Wyoming (or Montana, or Nebraska) citizens by Bill,+Shooter+of+Bul · · Score: 4, Interesting

      I find your comment to be the same. Assuming that people in the city are more sophisticated than "rednecks who listen to country music and drink cheap beer and whisky"? How is that not an elitist comment? Cultural bubbles can also exist within large urban areas. This is how you end up with a Little Italy, China Town, etc sections in each large city. There are others not so visually apparent, I'm just picking on commonly known ones who's existence I wouldn't have to argue about.

      --
      Well.. maybe. Or Maybe not. But Definitely not sort of.
    2. Re:2000 Wyoming (or Montana, or Nebraska) citizens by cjc25 · · Score: 5, Insightful

      I find this study to be extremely flawed, not to say elitist / racist.

      Yes, people who fit a stereotype of those I dislike like to have friends who are similar.

      If the study had been conducted with 2000 subjects from places with people like me, I'm sure the results would've been more comforting to me.

      FTFY

    3. Re:2000 Wyoming (or Montana, or Nebraska) citizens by Samantha+Wright · · Score: 2

      The data is from Framingham, Massachusetts. Where did you see any mention of the Midwest?

      --
      Bio questions? Ask me to start a Q&A journal. Computer analogies available for most topics!
    4. Re:2000 Wyoming (or Montana, or Nebraska) citizens by Anonymous Coward · · Score: 1

      The data is from Framingham, Massachusetts. Where did you see any mention of the Midwest?

      In his mind's eye, where only "rednecks who listen to country music and drink cheap beer and whisky" self-segregate, and of course the only place such people live are here in "flyover country."

      Makes a person wonder if the people rodrigoandrade chooses to hang out with are also bigotted against white midwesterners... according to this study, the probability is closer to 1 than 0.

      -- CanHasDIY, preservin' mods, yo.

    5. Re:2000 Wyoming (or Montana, or Nebraska) citizens by Holladon · · Score: 1

      If anything, your strong and borderline exclusive association of the (presumably, from your phrasing) morally-laudable characteristic of "diversity" with having the ability/means to live in one of the most expensive cities in the world is pretty damned elitist, I'd say.

    6. Re:2000 Wyoming (or Montana, or Nebraska) citizens by PRMan · · Score: 1

      But race is such a small part of DNA. At my last job, I had a friend who was from India. We just clicked immediately, no idea why. I'd be interested to see if his DNA is more similar to mine than other people I know in California. This is how I took the study.

      --
      Peter predicted that you would "deliberately forget" creation 2000 years ago...
    7. Re:2000 Wyoming (or Montana, or Nebraska) citizens by HeckRuler · · Score: 1

      Uh, I'm a software engineer working in Iowa on avionics. Embedded hardware that's part of an OBOGS unit. It let's fighter pilots breath. I was born in Omaha Nebraska. I'm part of the local hackerspace, founded a fencing salle, and regularly go to a symphony. Crown Royal and Maker's Mark is about the cheapest whiskey I'll stomach. I prefer rock and techno. I work with Indians and Chinese (and a lot of old white guys). I am, in short, "from the city". In Iowa. Deal with it.

      Damn straight you're burning karma. You know that little voice in your head telling you to post AC? That's your conscious reminding you that you're a dumbass.

    8. Re:2000 Wyoming (or Montana, or Nebraska) citizens by khallow · · Score: 1

      If the study had been conducted with 2000 subjects from culturally diverse places, like NY or Tokyo, I'm sure the results would've been a lot diferent.

      It's worth noting here that the data used in the study comes not from Wyoming, but from the Framingham Heart Study which apparently studies a few tens of thousands of people for cardiovascular disease over many decades. It's not a particularly ethnically diverse town so there's that going for you.

      Personally, I think we'd find that there are different distinct friend-acquiring strategies out there. Picking people like you is still probably going to be the dominant one no matter how diverse the area you pick is.

    9. Re:2000 Wyoming (or Montana, or Nebraska) citizens by Samantha+Wright · · Score: 1

      These are distinctions that, as a Canadian from the east, I was not aware of. So noted!

      --
      Bio questions? Ask me to start a Q&A journal. Computer analogies available for most topics!
  8. Re:A tad obvious by i+kan+reed · · Score: 1

    Except they specifically say you have more in common than with a randomly selected stranger, so you're "obvious" point is completely contravened by the article.

  9. Could it be something more basic? by lagomorpha2 · · Score: 5, Interesting

    In a number of different memoirs from actors in the original Planet of the Apes, it was noted that people playing different types of apes always sat with each other at lunch. It was a bizarre granfalloon - baboons with baboons and orangs with orangs for no other reason than that they looked the same. And these were people that knew each other before the film.

    People have a natural inclination to like people that look more like them whether it makes sense in modern society or not.

    1. Re:Could it be something more basic? by bluefoxlucid · · Score: 2

      But everyone wants those fine slim asians.

    2. Re:Could it be something more basic? by moteyalpha · · Score: 3, Interesting

      That reflects something that I pondered. In terms of neural networks and the ability to recognize familiar things. The action of recognizing could be a composite of those people you have become familar with. In other words, a person could see someone and assign them for recognition by the similarity of their traits to others that are already impressed on their brain such that they would be 10 percent like my cousin, have a nose like my brother, walk ike my sister, etc. So in the same way that people communicate in the language they learn as a child, they can only recognize based on the visual clues that act as a type of hidden language of form, action, and appearance. People of similar genotypes would naturally have similar recognizable features and people who share culture would have the similar and understandle behavior and speech. I aree with some other poster that everybody shares similar DNA, it just depends on how similar you want to get since some genetic sequences are conserved across a vast range of genotypes / phenotypes and even extend to single cell organisms, I am certain that all organisms share most of the tRNA molecules and rRNA structure. So people like to be in familiar surroundings because it reduces the stress of dealing with unfamiliar environments.

    3. Re:Could it be something more basic? by Anonymous Coward · · Score: 1

      But everyone wants those fine slim asians.

      Only because they never throw gingers.

    4. Re:Could it be something more basic? by houghi · · Score: 3, Interesting

      Once saw a BBC program (I think) where they gave a group of people red and blue shirts. No explanation was given and no specific tasks where given that mentioned anything about red team or blue team. Still there groups formed.

      It reminded me of many years ago when punk started. I asked a punker why he dressed the way he did. He started talki g about distancing himself from groupthink and how people in suits looked down on how he dressed instead of him as a person.
      I (almost obviously) asked why all punkers dressed the same and why they looked down on people on the way they dressed he looked at me with a very puzzeld face and told me that was not the case.

      People (even nerds) are social animals and will group together with those that pose the least threat. Or to those who will give them the best benefits to survive.

      For people the way you dress shows you what you group is. People will know what that group thinks and even if as individuals you might disagree, on a group level, the differences are not that big.

      Oh and ladies: if it walks like a duck and quacks like a duck, it most likely will be treated as a duck.

      --
      Don't fight for your country, if your country does not fight for you.
    5. Re:Could it be something more basic? by PRMan · · Score: 1

      And if you have ever seen "Hotel Rwanda", it appears that the Dutch can come in and start randomly classifying people and 50 years later they will go to war and start trying to genocide each other, even if they are from the same family.

      --
      Peter predicted that you would "deliberately forget" creation 2000 years ago...
    6. Re:Could it be something more basic? by MarkvW · · Score: 1

      Maybe it goes deeper than looks! That would really be cool.

    7. Re:Could it be something more basic? by m00sh · · Score: 1

      In a number of different memoirs from actors in the original Planet of the Apes, it was noted that people playing different types of apes always sat with each other at lunch. It was a bizarre granfalloon - baboons with baboons and orangs with orangs for no other reason than that they looked the same. And these were people that knew each other before the film.

      People have a natural inclination to like people that look more like them whether it makes sense in modern society or not.

      That doesn't make sense. A while ago, I had to with storing my clothes and getting dressed where there were no mirrors. I had no idea how badly I was mismatching clothes and colors.

      The point is I had no idea what I looked like. How would I seek out similar people?

      The different apes could have sat together for thousands of reasons. Something as small as a prelunch routine that gave the different apes even something small differently could result in them sitting together.

    8. Re:Could it be something more basic? by oldmac31310 · · Score: 1

      Belgians. King Leopold and all that...

      --
      http://www.acetonestudio.com
    9. Re:Could it be something more basic? by Anne_Nonymous · · Score: 1

      >> bizarre granfalloon

      Yeah, well I'm pretty sure that's not a real ape.

    10. Re:Could it be something more basic? by lagomorpha2 · · Score: 1

      No no, it's much less rational that that. Studies have shown that people find the odor of their 3rd cousins smells better than anyone more or less closely related to them.

    11. Re:Could it be something more basic? by khallow · · Score: 1

      It's probably just that the people who worked together ate together.

      And granfallooning is a powerful mathematical technique. Surely, you've heard of the four granfalloon theorem? Or the more general property of graph granfallooning? And there's the topological result that one can decompose in non-overlapping granfalloons the sphere finitely in such a way that one can construct two identical copies by putting back together the granfalloons in different ways.

  10. Predisposed by BreakBad · · Score: 1
    1. Re:Predisposed by Jeremiah+Cornelius · · Score: 2

      "Hey babe, is this guy boring you? I'm from another planet!"

      --
      "Flyin' in just a sweet place,
      Never been known to fail..."
  11. except for the good friends that arent by johnrpenner · · Score: 1

    yeah, people like to live in a comfort zone — but i've found that some of the best friends come from right out of that comfort zone..

    2cents
    jp

    A man needs a little madness, or else he never dares to cut the rope and be free.
    (Nikos Kazantzakis, Zorba the Greek)

    1. Re:except for the good friends that arent by Aguazul2 · · Score: 1

      yeah, people like to live in a comfort zone — but i've found that some of the best friends come from right out of that comfort zone..

      What about people who have a mix of genes from all over? Does that explain the wide genetic diversity amongst my friends, and how I like to hang out in diverse places with not much racism?

      What is described here seems rather incestuous, like "all my friends are clones of me", like a bunch of Greys. I guess there are some people like that.

    2. Re:except for the good friends that arent by PRMan · · Score: 2

      But since race is only about 1% of DNA, you could be like them in many other ways.

      --
      Peter predicted that you would "deliberately forget" creation 2000 years ago...
    3. Re:except for the good friends that arent by Anonymous Coward · · Score: 3, Insightful

      I dont get how everyone on here keeps making the equation: genetics = race. Thats not what this is about.

      I'm an engineer. Since I was a kid, I've loved to take things apart and put them back together. The closest friends I have in life are all from different parts of the world but they tend to be like me in that they also grew up taking things apart and putting them back together. So whatever gene-grouping is responsible for that behavior is probably shared by my friends from India, Russia and Sweden.

      Genetics != race

    4. Re:except for the good friends that arent by Darinbob · · Score: 1

      Maybe they're friends because they are from the same cloning tank?

  12. Re:A tad obvious by ackthpt · · Score: 2

    This is why I don't have friends - I'm not human.

    What are you doing out?!? Get back in your cage!

    --

    A feeling of having made the same mistake before: Deja Foobar
  13. It's normal. by nospam007 · · Score: 4, Funny

    After all, many friends fuck their friends' wives, so after a couple of generations, they are all a happy family.

    1. Re:It's normal. by Samantha+Wright · · Score: 1
      They controlled for that:

      To eliminate the possibility that the results are influenced by people tending to make friends with distant relatives, we use only the 907 friend pairs where kinship <= 0 (recall that kinship can be less than zero whe n unrelated individuals tend to have negatively correlated genotypes). This procedure ensures that pairs of friends in the GWAS are not actually biologically related at all.

      --
      Bio questions? Ask me to start a Q&A journal. Computer analogies available for most topics!
    2. Re:It's normal. by TrollheartBlue · · Score: 1

      After all, many friends fuck their friends' wives, so after a couple of generations, they are all a happy family.

      Is there something you would like to talk about?

      --
      Hey, look at me! My opinion is valid because I found a website that says the same thing.
  14. Re:Bull by ackthpt · · Score: 1

    No kidding. I'm thinking that the majority of people live, breed and die within a few hundred miles of where they were born and this goes on generation after generation. One would expect a certain homogeneity in the range of genes within that population.

    I live 2500+ miles from where I was born and some of my best enemies are humans.

    --

    A feeling of having made the same mistake before: Deja Foobar
  15. Fourth cousins? by Tony+Isaac · · Score: 3, Interesting

    If there are only six degrees of separation between you and just about everybody on earth, the classification "fourth cousin" probably covers a large part of the earth's population!

    1. Re:Fourth cousins? by Samantha+Wright · · Score: 2

      Those are social degrees of separation, not ancestral.

      --
      Bio questions? Ask me to start a Q&A journal. Computer analogies available for most topics!
    2. Re:Fourth cousins? by alternativity · · Score: 3, Informative

      Not really. The idea of six degrees of separation is based on acquaintance and not on genetic relations. E.g. think of China under the one child policy, if it continues, then each passing generation will lose a subsequent degree of cousins. The first cousins would disappear first, then second, third, fourth and so on, but six degrees of separation will still apply to them.

    3. Re:Fourth cousins? by Kjella · · Score: 2

      You have a many more social connections than genetic connections. You only have two parents, being a fourth cousin means you share a great-great-great-grandfather and you have at most 2^5 = 32 of them or less if they've interbred. The world fertility rate is now on average 2.36 children, it'll be a rough approximation but each great-great-great-grandfather will have approximately 2.36^5 = ~73 descendants. That's ~32*~73 = ~2336 fourth cousins ignoring any overlap. Of course you'll have other close relatives that'll also fall within that sphere, but we're still talking about a tiny fraction of the total population.

      --
      Live today, because you never know what tomorrow brings
    4. Re:Fourth cousins? by Dachannien · · Score: 1

      Back in my college Medieval History class, our instructor explained to us that the "Speak now, or forever hold your peace" line in wedding ceremonies has its roots in a Catholic church prohibition at the time which disallowed marriages between sixth cousins or closer. If you knew that the couple were more closely related than that, then you piped up right there and put the kibosh on the arrangement.

      But nearly everyone in England at that point was at least that closely related to each other, so the prohibition was generally ignored.

    5. Re:Fourth cousins? by Tony+Isaac · · Score: 1

      I should have figured that everybody (in this crows) would jump on the technical distinction between "degrees of separation" and biological cousins. Well, DUH! I guess i need to spell it out. The point was, we all have an awful lot of fourth cousins!

  16. I think they've thought of that by Anonymous Coward · · Score: 1

    FTFA:

    Perhaps the genetic links are simply a reflection of this common background.

    Not so, say Christakis and Fowler. The correlation they have found exists only between friends but not between strangers. If this was a reflection of their common ancestry, then the genomes of strangers should be correlated just as strongly. “Pairs of (strictly unrelated) friends generally tend to be more genetically homophilic than pairs of strangers from the same population,” they point out.

    But the FA goes on about the many many many questions raised.

    This is one of those studies where our grandkids will have a better idea of what's going on.

    I once heard on a TED talk that one should ignore all research on the brain in one's lifetime because it'll be most likely wrong.

    I think genetics should fall into that category.

  17. Has this been corrected for other factors... by Lendrick · · Score: 1

    ... such as birthplace and race?

    Race alone would account for a huge genetic difference, and people tend to be friends with people of their own race for all sorts of reasons that can be easily explained through psychology and sociology. You're also more likely to be at least distantly related to people who live in the same area as you do.

    1. Re:Has this been corrected for other factors... by Samantha+Wright · · Score: 3, Insightful

      Almost all of the participants in the dataset were Americans of European descent. They controlled for the possibility of distant relatedness as aggressively as they could, which is a well-understood requirement of many GWAS experiments.

      --
      Bio questions? Ask me to start a Q&A journal. Computer analogies available for most topics!
  18. Genome Based Social Network/Dating Services by wrackspurt · · Score: 2

    Slashdot just ran a story on universal genome sequencing at birth. How long before your prom date is set up before you're home from the maternity ward.

    1. Re:Genome Based Social Network/Dating Services by pregister · · Score: 1

      About 14 billion years ago.

  19. Re:Say it with me... by Anonymous Coward · · Score: 1

    yeah, we prefer the term American Crackers!

  20. Choice of circumstance? by fahrbot-bot · · Score: 4, Interesting

    I'm reminded of the Better Off Ted episode Get Happy

    Linda suggests that Veridian let its employees have decorations in their company. Veronica agrees, but the company selects the decorations and assigns them to the employees. Linda discovers that she's suddenly a cat person, while other employees have cars, Green Bay Packers, or space decorations.

    ... Linda bonds with her fellow cat employees who start obsessing about cats... At lunch, Linda decides to talk with the outer space employees. They think they're too smart for her, and the cat employees see her as a traitor... Later, Linda discovers that the cat people have destroyed her cat decorations.

    "Veridian Dynamics. Teamwork. It keeps our employees gruntled."

    --
    It must have been something you assimilated. . . .
    1. Re:Choice of circumstance? by Zontar+The+Mindless · · Score: 1

      Neither is the cleverness you imagine that you've displayed by posting that fairly useless remark.

      --
      Il n'y a pas de Planet B.
  21. Re:Say it with me... by Holladon · · Score: 4, Funny

    ... white people are racist

    how dare you say white people are racist!

    Indeed! This is quite possibly, without exaggeration, the single most cruel and inhumane thing you can do to another person. Accusing another person of racism is so low that, I daresay, it ought to be considered a hate crime! I know I certainly won't stand for being accused of racism. I am a white human being with dignity, and I deserve better than that!

  22. So which is it? by Daetrin · · Score: 1

    Do my asian friends not exist? Or am i not human? Or are asians and white people far more closely related on a genetic level than i've previously been led to believe?

    --
    This Space Intentionally Left Blank
    1. Re:So which is it? by wonkey_monkey · · Score: 1

      Or maybe you're not the only human in the world, and other people - both individually and on average - are different to you. Did you ever consider that?

      --
      systemd is Roko's Basilisk.
    2. Re:So which is it? by PRMan · · Score: 1

      Why does everyone think this is about race? That's only like 1% of the way you could be similar to someone else.

      --
      Peter predicted that you would "deliberately forget" creation 2000 years ago...
    3. Re:So which is it? by Valdrax · · Score: 1

      Or are asians and white people far more closely related on a genetic level than i've previously been led to believe?

      Actually, yes. There is far more human genetic diversity within the continent of African than in all the areas where human who migrated out of Africa settled. The further away from Africa you get (in terms of prehistoric migration), the less genetic diversity there is.

      Most of what people focus on in defining the "races" is superficial traits mostly distinguished by appearance. Beneath the surface, there's a lot more commonality, and there's a lot less variation in areas further removed from Africa.

      All that said, the genetic sample base they used was the Framingham Heart Study, which overwhelmingly dealt with white, European-descended people from the same city. This has potential biases to the sample set, which they acknowledge and address where possible.

      --
      If it's for-profit but free, you're not the customer -- you're the product (e.g., the Slashdot Beta's "audience").
    4. Re:So which is it? by Daetrin · · Score: 1

      Actually it's probably somewhere between 5% and 15%, depending on which study you go with.

      However along with other outward physical traits those are the genetic differences we can judge just by seeing, and if we assume that the rest of the genetics are fairly evenly distributed it's going to be a pretty significant bias. Without doing a genetic test i can make a reasonable argument that statistically my asian friends are more likely to be more genetically different from me than my white friends.

      I suppose it's possible that this study is true and my genetic sixth sense has cleverly sorted my friends so the ones that look different on the outside are more similar on the inside, while the ones who look the same on the outside are much more different on the inside, but i'd definitely want to see some more studies and theories about the phenomenon before i'd believe that.

      --
      This Space Intentionally Left Blank
  23. Let's see by kilodelta · · Score: 1

    I have only a few close friends. They're mixed races and ethnicity, so I'm obviously not going by phenotype. I think a lot of it is the demographics of the group more so than DNA.

  24. More eugenics propaganda! by s.petry · · Score: 2

    Nothing to see here, move along.

    I'm sure that a few will claim "no, you are just anti-science" or some such but lets check a simple fact. 2000 genes were used in this study. What percentage of the human genome is this? Not only would this mean that "correlation == causation", but that correlation of 8.024e-6 (yes, that is a very small number) is the "normal".

    --

    -The wise argue that there are few absolutes, the fool argues that there are no probabilities.

    1. Re:More eugenics propaganda! by starless · · Score: 1

      2000 genes were used in this study. What percentage of the human genome is this?

      "A 2012 analysis of the human genome based on in vitro gene expression in multiple cell lines identified 20,687 protein-coding genes."
      http://en.wikipedia.org/wiki/Human_genome

    2. Re:More eugenics propaganda! by s.petry · · Score: 1

      Thanks for the correction. This makes the analysis on 8.024e-5 which is still a very small percentage of our genes.

      --

      -The wise argue that there are few absolutes, the fool argues that there are no probabilities.

    3. Re:More eugenics propaganda! by LateArthurDent · · Score: 1

      Thanks for the correction. This makes the analysis on 8.024e-5 which is still a very small percentage of our genes.

      We share about 98% of our genes with chimpanzees, dude. It's not like any one of our many genes can be different, the vast majority are exactly the same. By contrast, the current theory that the homo sapiens first evolved in Africa is based on a study that looked at 1327 DNA markers. Are you going to claim that study is also flawed?

    4. Re:More eugenics propaganda! by s.petry · · Score: 1

      Primarily, I am claiming that making psychological determinations by reviewing our DNA is a ludicrous prospect. Secondarily, claiming that we are 98% the same as chimpanzees is an absurd correlation used to dehumanize people, considering the length of DNA.

      While we can figure out certain mechanics, human behavior and knowledge are trained. They are not in our DNA.

      --

      -The wise argue that there are few absolutes, the fool argues that there are no probabilities.

    5. Re:More eugenics propaganda! by s.petry · · Score: 1

      The correct math is: (DNA sample size) / (Total DNA length). Not (number of people sampled) / (DNA sample size).

      --

      -The wise argue that there are few absolutes, the fool argues that there are no probabilities.

    6. Re:More eugenics propaganda! by Zontar+The+Mindless · · Score: 1

      Wrong. You're a primate, and a lot of your behaviour is very typical for primates. So am I, and so is mine, for that matter.

      --
      Il n'y a pas de Planet B.
    7. Re:More eugenics propaganda! by s.petry · · Score: 1

      Secondarily, claiming that we are 98% the same as chimpanzees is an absurd correlation used to dehumanize people, considering the length of DNA.

      Wrong. You're a primate, and a lot of your behaviour is very typical for primates. So am I, and so is mine, for that matter.

      Since you don't understand your own species, you obviously fall for the fallacy. Even lacking critical thinking abilities you are still human. It should only take reading a few articles on psychology to deduce that you (and all other humans) are much more than your DNA sequence.

      --

      -The wise argue that there are few absolutes, the fool argues that there are no probabilities.

    8. Re:More eugenics propaganda! by Zontar+The+Mindless · · Score: 1

      You apparently did not understand what I said.

      --
      Il n'y a pas de Planet B.
  25. Say it ain't so!!! by cookYourDog · · Score: 1

    Something that counters the unproven merits of diversity?! No! Actually, this study would probably be valuable in determining why levels of trust are higher in homogenous societies - Harvard political scientist Robert Putnam published a book that detailed this. That is, if this study isn't de-funded for politically incorrect results.

  26. Re:Bull by Samantha+Wright · · Score: 2

    They did study a relatively cosy community, which was predominantly white. They removed as many families and evidence of distantly-related friends as they could using the Manichaikul et al. 2010 kinship metric, which has been cited 34 times (a fairly good number of hits for a two-year interval.)

    The upshot of this study, in my opinion, is that the things that make people compatible friends happen to be reflected (to a degree) in certain markers in the genome. It doesn't necessarily indicate anything about race or relatedness, and you can probably predict that two people of radically different ethnicities may like each other as friends because of similarity simply due to the subset of markers that are important. It's a bit misleading of the authors to imply that this is somehow a pan-genome phenomenon when obviously there are plenty of things in the genome that could change without any detectable impact.

    --
    Bio questions? Ask me to start a Q&A journal. Computer analogies available for most topics!
  27. Re:So basically everybody is a little bit racist by Rob+Riggs · · Score: 1

    I think I've heard that song before.

    --
    the growth in cynicism and rebellion has not been without cause
  28. No way she is my fourth cousin. by mynameiskhan · · Score: 1

    Can I marry her or not? PS: Does the article talk about friends of opposite sex?

  29. AC, party of one by Valdrax · · Score: 4, Informative

    I've lived around the world and have a variety of friends.

    Well neat. You alone must be a representative sample set of humanity that dwarfs this mere 1932 person sample group for statistical relevance. Thank goodness you know more about statistics than people doing a population study!

    I'm assuming these 2000 individuals for the study were in environments that just happened to have similar genes around them.

    Actually, if you read the study (OMG! I must be new here!), then you'll see that they address this point:

    "There are (at least) four possible reasons that friends may exhibit homophily in their genotypes. First, correlation in genotypes may be a trivial by-product of the tendency of people to make friends with geographically proximate or ethnoracially similar individuals who also tend to share the same ancestry. Thus, it is important to use strict controls for population stratification in tests of genetic correlation (below, we rely on the widely used principal components method to control for ancestry). [...] Third, people may actively choose particular environments, and, in those environments, they may be more likely to encounter people with similar phenotypes influenced by specific genotypes. If people then choose friends from within these environments (even at random), it would tend to generate correlated genotypes."
    [...]
    "To eliminate the possibility that the results are influenced by people tending to make friends with distant relatives, we use only the 907 friend pairs where kinship â 0 (recall that kinship can be less than zero when unrelated individuals tend to have negatively correlated genotypes)." (ed: They do the same with 907 stranger pairs.)

    In the end, they find that people prefer friends that share genes for the same sense of smell and the same linoleic acid metabolism. We also strongly prefer people with different genotypes for immune system function. While there are hundreds more homophilic and heterophilic gene correlations, those were the three that were most over-represented between people. There are many other genes that friends share, but most of those vary from pair to pair of people and are either idiosyncratic preferences or possibly just coincidences. Those three genes are not.

    It's pretty well known that human select their lovers in part by smell. It's interesting that we pick our friends too that way. The paper gives a few good theories for why that's true (based on older research) and also does so for the immune system. The linoleic acid thing seems to have baffled them a bit, though they make a stab at explaining it as possibly being related to food safety and keeping the community on the same page about what's good to eat.

    --
    If it's for-profit but free, you're not the customer -- you're the product (e.g., the Slashdot Beta's "audience").
    1. Re:AC, party of one by martinQblank · · Score: 1

      It's pretty well known that human select their lovers in part by smell.

      Huh...so that's what I'm doing wrong. I've always gone by taste. Makes the wine pairing easier.

  30. XENOPHILIA! by Jeremiah+Cornelius · · Score: 1

    I'm stuck with this bastard, for now. Just wait til I die, though!

    Seriously. My friends would not be very closely identified with each other - or me. Nor would my wife or children!

    I believe that "genetic purity" is a code word for incest.

    --
    "Flyin' in just a sweet place,
    Never been known to fail..."
  31. Re:Bull by Jeremiah+Cornelius · · Score: 2

    It sounds to me like they shot an arrow into the side of a barn, then drew a bulls-eye around it, afterwards.

    --
    "Flyin' in just a sweet place,
    Never been known to fail..."
  32. Culture matters as well by dhaen · · Score: 1

    Amusingly I found that in Tokyo bars (in friendship terms) I had more in common with the locals than with caucasian Americans with whom I share the same European ancestry.

    Nevertheless I am broadly drawn towards females who are similar to me. Those who look most dissimilar do not rate on my "wish to procreate with" list.

    For the article's hypothesis to work, it's the second point that matters most. It means that the people who are born around you will be more like you and so are there for available friendship.

    Not everyone is like me, and I'm glad of that. The more diverse the gene pool, the stronger the specie.

  33. Double fail! by taikedz · · Score: 2

    This study fails on two counts: Americans are statistical outliers; the conclusion is fallacious due to poor understanding of causality.

    For those for whom this is TL;DR -- Americans are the worst possible population to base any form of human study on (let alone a flawed study) - ref Solomon Asch's conclusion. The short summary @ neuroecology ; the longer discussion @ pacific standard.

    Among Westerners, the data showed that Americans were often the most unusual, leading the researchers to conclude that “American participants are exceptional even within the unusual population of Westerners—outliers among outliers.”

    But try this little thought experiment: take some random Anyville, USA. How much have they travelled, how diverse is their population? How do populations move? How many are going to marry from the same town, as did their parents and grandparents, and how many are going to have children and grandchildren doing the same? And even if the population started out with diversity, you can lather, rinse, repeat the marriage/procreation suds and end up with a genetically similar pool of people - the town itself holds massively similar people on average.

    Those of us who are more footloose and have moved around further are still statistical anomalies, insomuch as we often hail from outside of these wells of similarity. That is not to say that since we're so different, we cannot make friends with those whose families are long time residents, nor does it exclude the idea of having a multicultural community of extremely different people, DNA-wise.

    But at its core, the fault of this study is basic: a textbook example of correlation-causation fallacy.

    --
    -- "Simplicity is prerequisite for reliability." --Dijkstra
  34. Re:Bull by K.+S.+Kyosuke · · Score: 1

    No kidding. I'm thinking that the majority of people live, breed and die within a few hundred miles of where they were born and this goes on generation after generation. One would expect a certain homogeneity in the range of genes within that population.

    So you're saying that *all* your neighbors are your friends?

    --
    Ezekiel 23:20
  35. Re:Bull by Samantha+Wright · · Score: 3, Interesting

    The suspicion that part of social compatibility can be explained through superficial genetic traits has been explored before. The bibliography on page 21 of the totally free and unpaywalled arxiv PDF has a few citations that seem pretty similar.

    That being said, I'm not so sure about some of their conclusions; they make it sound like there are purely mechanistic reasons why we seek out the friends we do. Consider the following:

    The implications of the finding regarding homophily on genes related to linoleic acid metabolism are unclear. Linoleic acid is a precursor for substances involved in a broad range of important bodily processes (ranging from adipocyte function to bone formation to the regulation of gene expression) (42), and the component genes in the pathway are related to the metabolism of cholesterol, steroids, and various ingested substances, though it is intriguing that linoleic acid compounds might be used by moths as pheromones (43). Possibly, this pathway is related to the restrained consumption or the specific metabolism of various foodstuffs, traits for which homophily may be advantageous and heterophily self-injurious.

    Personally, I think this is patently absurd and that there is no way this could influence personality or human behaviour. It seems to me to be more likely that the linoleic acid genes either have some wildly obscure indirect effect on personality that we can detect, or that they're simply inherited by chance with something that does.

    It would have been wonderful if people here actually bothered to RTFA so we could argue about whether or not biochemically-inclined sociologists are out to destroy civilization by being too narrow-minded. On the plus side, this is a biology paper that was submitted to Arxiv, which means that it probably is having trouble getting into a major journal (i.e. it's very possibly being regarded as crap by journal editors due to its weird conclusions.)

    --
    Bio questions? Ask me to start a Q&A journal. Computer analogies available for most topics!
  36. Wow, that is obvious, if you don't think about it. by Valdrax · · Score: 2

    All humans have "similar" DNA

    Wow, what an amazingly useless statement. Hey, scientists! SlithyMagister has declared that there is no point in describing genomics at a more fine-grained level than the species level. Field's closed -- everyone out!

    Of course, the issue is the matter of degree of similarity. They found that friends were more similar than strangers, to the point that they were as similar as fourth cousins. That would be fascinating on its own, but they also found that friends were specifically more similar in two ways -- sense of smell and linoleic acid metabolism -- and specifically different in immune system function.

    --
    If it's for-profit but free, you're not the customer -- you're the product (e.g., the Slashdot Beta's "audience").
  37. Re:U.S. people, not (necessarily all other) humans by cookYourDog · · Score: 1

    What country isn't "segregated"? From Sweden to Singapore, ethnic groups have created their own communities. Gated neighborhoods aren't an American-only thing, either. You'll have to explain your reasoning further.

  38. Forever alone by Anonymous Coward · · Score: 1

    So what they're saying is that my DNA is particularly unique?

  39. Comment removed by account_deleted · · Score: 1

    Comment removed based on user account deletion

  40. Re:Bull by Nemyst · · Score: 3, Insightful

    This doesn't really work in today's world, though. Sure, in suburbs and villages, that probably has something to do with it. Cities, though? A city hash millions of people living in it, many of them not even originating from that city at all. Walk a hundred meters and you'll probably stumble on people from 10 different countries at the very least. I have serious doubts that you, by happenstance, always pick people who grew near your own place of birth.

  41. Re:U.S. people, not (necessarily all other) humans by Anonymous Coward · · Score: 1

    Absolute bullshit.

    Highly segregated as compared to where? Give some examples of less-segregated places. Hell, Europe is the home of the Quarter - Jewish quarter, Muslim Quarter, Turkish Quarter, Dutch Quarter, etc. ~That~ is fucking segregation.

    If anything, since Americans (with some exceptions) move around their country far more than (in my experience) other people move around their countries, the US is one of the better places to make a study like this. I dont live in the region my family is from...my parents didnt live in the region their parents did, etc.

    You'd be hard pressed to find many Americans who dont have a few different ethnicities in their backgrounds - I'm Irish, Dutch, Portuguese, American Indian and German. Pretty average, for an American.

  42. My dog is my best friend by TarPitt · · Score: 1

    Does that mean I have canine DNA?

    Now you will have to excuse me - I have some territory to mark

    --
    If your children ever found out how lame you are, they'd murder you in your sleep
    1. Re:My dog is my best friend by PolygamousRanchKid+ · · Score: 1

      Does that mean I have canine DNA?

      No, but if your relationship develops into something more serious than just friendship, maybe your joint offspring will . . .

      --
      Schroedinger's Brexit: The UK is both in and out of the EU at the same time!
  43. SubjectsForCommentsAreStupid by lesincompetent · · Score: 1

    A paper which suggests that fugly people usually date fugly people. lol

  44. Re:Bull by s.petry · · Score: 1

    Personally, I think this is patently absurd and that there is no way this could influence personality or human behaviour. It seems to me to be more likely that the linoleic acid genes either have some wildly obscure indirect effect on personality that we can detect, or that they're simply inherited by chance with something that does.

    I agree, and this paper to me continues a trend of portraying humans as nothing more than organic machines. Emotions and morality are often portrayed by the same publishers as malfunctions in the organic machine which must be mended by science (I did not detect that in TFA, just pointing out that it is a regular occurrence).

    It should be obvious that we are not simply machines. Appeals to intellect are used to convince people that rational thought is incorrect.

    --

    -The wise argue that there are few absolutes, the fool argues that there are no probabilities.

  45. Sponge by WillKemp · · Score: 1

    My best friend's a sponge - we share 70% of the same genes.

    1. Re:Sponge by z4ckpete · · Score: 1

      My best friend's a sponge - we share 70% of the same genes.

      Is that you Patrick?

  46. Friend zoning by Stoutlimb · · Score: 1

    If this behavioural trait is true, it may explain the "friend zoning" that women do in an evolutionary way. The best of friends (and the closest in genetics) rarely get laid because it would be a from of inbreeding. If organisms have a way to detect and closely associate with genetically similar individuals, it wouldn't be a stretch that mating strategies would evolve to seek individuals from outside this close group.

    And then again, there's the women who like to make their rounds with entire circles of friends. I don't think any male has yet to comprehend that mating strategy.

    1. Re:Friend zoning by BitZtream · · Score: 2

      What's so difficult to understand? You can't comprehend that some women like sex as much as men?

      I've never met a woman who knows what a proper orgasm is who didn't love sex as well. plenty of women who haven't been properly pleasures don't like it, sure. Not ones who have had a good orgasm though.

      Perhaps your view is skewed do to your own issues. And before you respond, just because you can jackhammer her for an hour, doesn't mean any part of it was good. 9 out of 10 women would rather have a good quickly than an hour that just makes them sore and disappointed.

      --
      Persistent Volume manager for Kubernetes - https://github.com/dwimsey/openshift-pvmanager
    2. Re:Friend zoning by Stoutlimb · · Score: 1

      You're reading too much into a small joke. Your comments also likely also say more about yourself than me. :-)

    3. Re:Friend zoning by Darinbob · · Score: 1

      This is most likely because you rarely stay freinds after sex. It's too awkward and sex is not a one time thing that you do and then forget about forever, it causes deep emotional changes. Sure some people are very aloof about it all but in general most people aren't able to have casual sex and be friends. Common sense is that it's a bad idea (and when it comes to sexual attraction, men tend to lose common sense the soonest, therefore it's usually the woman who maintains the friend zone).

  47. Re:U.S. people, not (necessarily all other) humans by Lumpy · · Score: 1

    That awesome Booo-Tay? All the sisters got back!

    --
    Do not look at laser with remaining good eye.
  48. Re:Bull by interkin3tic · · Score: 3, Interesting

    That doesn't make the findings impossible. The genetic variation is known or could be estimated given the demographics of a person's locale, and you could compare the profile of expected (if friend making was completely random) to actual pretty easily. If they don't match up, then there's some selection going on.

    For example, if you're white and live in the bronx, and significantly less than half of your local friends are hispanic, then obviously race factors into who you make friends with in some way. You could do the same thing with genetic markers.

  49. Re:Bull by Samantha+Wright · · Score: 1

    I wouldn't go so far as to say we're not machines at all, just that we're not simple machines; ultimately, everything must have a comprehensible mechanism, or evolution cannot function. Possibly that's what you meant, but I just want to underscore that my concern is that there's a profound amount of functional reduction going on because of a shortsighted, overly-analytical mindset: the authors are looking at a single brick with a bit of mortar on it and assuming the brick belongs to a barbecue pit, when we know there's a skyscraper sitting right in front of them. This is not only bad psychology but bad behaviourism—even B. F. Skinner's radical reductions of human activities came with the caveat that he was too humble to speculate on the underlying reasons for the causal links he observed.

    --
    Bio questions? Ask me to start a Q&A journal. Computer analogies available for most topics!
  50. Re:Bull by s.petry · · Score: 1

    I don't agree that we are simply machines. Humans have incredible capacity for learning and emotion. Our psychological behavior has very little to do with the mechanics, and everything to do with what we learn and see in society as well as our social standing. We can learn that learning is fun, or we can learn that learning is horrible. We can learn courtesy, or learn to be barbaric. We can learn that lies are good, or learn that lies are bad (and this is complex, because we learn loads of grey area in that one).

    To claim that we like people only because a mechanic is denying what makes us human.

    --

    -The wise argue that there are few absolutes, the fool argues that there are no probabilities.

  51. Re:Bull by Samantha+Wright · · Score: 2

    But there are mechanisms for learning; mechanisms we know must exist and, to some extent, even understand. The subtleties in them form the foundation of who we are when we are conceived, and interplay with our experiences as life continues. They are the tie-breakers that prevent us from being completely at the mercy of our situations, and what ties us to our parents even if we have not met them.

    What these people do is claim there is nothing more, and it is obvious they have no knowledge of cognitive science (or possibly other people). That is self-evidently wrong. But there's nothing inhuman about being a machine if that machine can learn, grow, and discover the universe. Would you deny personhood to an artificial intelligence with the same potential?

    --
    Bio questions? Ask me to start a Q&A journal. Computer analogies available for most topics!
  52. Re:Bull by s.petry · · Score: 1

    I believe we agree much more than I initially suspected. My point being that while our physical bodies are combined natural organisms, what makes us "human" is not our physical bodies. "Part != Whole" and all that. I am pretty sure that you are saying something very similar.

    --

    -The wise argue that there are few absolutes, the fool argues that there are no probabilities.

  53. Re:Bull by Samantha+Wright · · Score: 1

    Absolutely; I'm saying that although the non-physical component of our humanity must obey the laws of the universe (i.e. that there's no soul), that's no excuse for assuming we're dumb, instinctual creatures; the "linoleic acid pheromone romance" hypothesis utterly conflicts with the rest of what we know about how the mind and brain works. It is not wise to shave with Occam's razor without illumination!

    --
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  54. Ah by Eddy_D · · Score: 1

    So that's why I don't have any friends...

    --
    - I stole your sig.
  55. This whole shared genetics thing ... by PPH · · Score: 1

    ... had to be posted by someone named Kentucky?

    --
    Have gnu, will travel.
  56. Re:Bull by Jeremiah+Cornelius · · Score: 1

    We don't need a mechanism, per se - not on a macro level, that leads to deterministic outcomes. We simply need a process...

    Viewing evolution as having a mechanism is imposing a narrative view on the occurrence, after the fact - much like reaching 60, and looking back at the "story" of your life. It is our insistence in structuring our perception around narrative - this leads to foolish notions. Such as the "idea" which assumes thought emerges from the correct arrangement of fats and proteins.

    --
    "Flyin' in just a sweet place,
    Never been known to fail..."
  57. Re:Bull by Jeremiah+Cornelius · · Score: 1

    If there were simply a mechanism for learning, we would be able to determine algorithmically how to operate that mechanism withing defined parameters, and control for variables, to get predictable results with near-uniform outcome.

    Please excuse my French, but "No fucking way."

    --
    "Flyin' in just a sweet place,
    Never been known to fail..."
  58. Re:Bull by Jeremiah+Cornelius · · Score: 1

    We are as certain of the physical laws of the universe as our sensory perception and intellectual tools for extrapolation - this includes maths - can relay perception.

    I suspect the quaintness of Flatland renders the parable juvenile, for those who come to this line of inquiry after Fermi, Einstein, Heisenberg, Bohrs, Godel and Feynman. Nonetheless, the case that we cannot conceive of existence, beyond that of our electromagnetic chauvinism, is telling.

    Godel was convinced that God must exist, and that mathematically, set logic failed - were no such as God is.

    It is convenient to dismiss Godel as having gone mad. This is the typical opinion held by those with minds inferior to that of Einstein. :-)

    --
    "Flyin' in just a sweet place,
    Never been known to fail..."
  59. Re:Bull by Darinbob · · Score: 1

    And why do strangers become friends? Sometimes it's from finding they have common interests. If they find out they're from the same region of the country they can become friends over that, even if they're currently living a thousand miles away from home. Friends form also from people at the same college or university and those are regional as well, even big name colleges tend to have a majority of students coming from the same state or region (ie, Harvard undoubtedly has far more students from New England than from California, whereas the reverse is true at Stanford). Or you find friends at college because you both carpooled to the same county over christmas break. Or you become friends because you like the same sports team, which is again very regional.

    Ie, if you map out where your friends were born it wouldn't be suprising to find a sort of bell curve clustered around where you were born, even if you still have many friends who were born far away. Of course there will be exceptions but that doesn't disprove that people in general tend to have regional affiliations.

  60. Re: Bull by Darinbob · · Score: 2

    That doesn't disprove anything. This is about people in general, not about one person in particular, and it never said you will become friends with everyone close to you. You may be not be friends with 200 of your neighbors but at the same time you're not friends with 4 million people from China.

    This is statistics too. No one said that this was true for every single human being. If someone says that more people voted for Obama than for Romney, stepping forward to say "that's not true, I voted for Romney!" is irrelevant.

  61. Re:Bull by Darinbob · · Score: 1

    Most cities around the world you will find that people with the same ethnic background are far more likely to become friends than if they have different backgrounds. People in the same social class are more likely to interact and become friends, even in cities. New York is a huge city and yet it has very distinct neighborhoods, and in many ways is very parochial compared to smaller towns.

      No one but you said people "always" pick those near their place of birth.

    Nothing in this study said that ALL your friends have similar DNA. If you're an exception then that's great but it doesn't undo the statistics.

    Though do you really have no friends from your home town, no friends of your own race, no friends from the social class you were born into, no friends of the same religion, etc?

  62. Re:A tad obvious by Darinbob · · Score: 1

    He wouldn't even need to be in the cage if he'd stop throwing his feces at everyone.

  63. Re:Bull by Samantha+Wright · · Score: 1

    I think you may be drawing unintended semantic distinctions—I would not say that a "process" of evolution would be any different than a "mechanism." It happens, it happens in a way, that way is predictable. (Excepting of course for the stochastic realities of quantum randomness.) I did not mean to suggest there is some agent picking the exact direction of evolution, only that, if an organism's functioning is not based around some mechanism whose behaviour is primarily predictable, then evolution has nothing to optimize, and would be impossible.

    --
    Bio questions? Ask me to start a Q&A journal. Computer analogies available for most topics!
  64. Re:Bull by Samantha+Wright · · Score: 1

    I think you're misunderstanding my use of the word "mechanism" here. I'm not saying there are fixed gears and circuits that explain how we work (there quite obviously aren't!), only that there are patterns, pathways, and systems behind the brain and hence the mind. There is a way in which the mind works, it's not some magic supernatural black box instilled by some indecisive buffoon on a cloud.

    I'm a little weirded out by the "near-uniform" part, though. Do you truly believe that, placed in a situation with no new knowledge, you would consistently make significantly different choices? Most decisions are the results of our experiences and our immediate concerns; at best, the maximum variability in the outcome occurs when we fail to think things through. But as with catching your balance when you slip, it has been greatly beneficial to evolution to try to avoid screwing up (Hence why Larry Niven's contribution to the Crosstime series is bullshit.)

    Granted, there is a tiny spot in our model of how the central nervous system works to allow for quantum randomness to interfere with otherwise completely deterministic decision-making (the transposon activity we discovered a couple years ago), but I personally would argue most arbitrary decisions come from reflecting on forgotten knowledge or memories, a little like "casting the runes" over uninitialized RAM to get a random number. (An example: what is the most random-sounding two-digit number you can think of, and why?)

    --
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  65. Re:Bull by Samantha+Wright · · Score: 1

    Godel set out an ontological proof for the existence of God which, like the earlier Saint Anselm proof that he built his on, boils down to "God exists because he is good, and good things must exist." In the Anselm proof, the 'good' quality is "greatness;" in Godel's, it's (moral) "positiveness." Such ontological proofs categorically rely on premises that are incompatible with empirical realism, and are ultimately circular. (Which is fairly ironic, as Descartes himself proposed one.)

    I don't think it's fair to characterise his opinion of set logic as being a "failure," either; his theorems established limitations on what it could describe, and as a result helped precipitate the end of positivism, but to have the conviction to pursue such ideas he must have seen set theory as incomplete and accepted it that way to begin with. It's not that he thought it was a failure, it's that other people felt it was a failure after he showed them the truth about what it could and could not do. Gottlob Frege, Bertrand Russell, and many other prominent logicians had already been doing this for thirty years when Godel's big works were contributed.

    He definitely was a little crazy, though—he starved to death, weighing less than half his healthy weight, obsessively paranoid that someone was trying to poison him.

    As far as the physical laws of the universe go—keep in mind that the impact on science of Godel's work has been the acceptance that we may not know everything about the universe because we cannot detect it. If, once technology has reached its absolute maximum, we still cannot detect a phenomenon, then in all likelihood it will be something that does not affect us—otherwise we'd be able to detect its effect!

    As far as we know, the human mind doesn't depend on any of that stuff, though. There's enough mystery about how the brain works, and we're making enough headway in figuring it out, that at present we're not even sure the quantum randomness implied by this weird story is required.

    Remember, the universe is plenty capable of being beautiful even when it isn't inexplicable.

    --
    Bio questions? Ask me to start a Q&A journal. Computer analogies available for most topics!
  66. But... Americans are WEIRD. by Ralph+Spoilsport · · Score: 1, Insightful
    They have a long history of violent racism. So, why would this come as a surprise in the USA?

    I would think that this would be much more interesting in a more egalitarian and pan-racial society.

    --
    Shoes for Industry. Shoes for the Dead.
  67. Re:U.S. people, not (necessarily all other) humans by Zontar+The+Mindless · · Score: 2

    And there many "white" Americans who've got some African ancestry and don't even know it.

    --
    Il n'y a pas de Planet B.
  68. Re:Bull by Jeremiah+Cornelius · · Score: 1

    Remember, the universe is plenty capable of being beautiful even when it isn't inexplicable.

    Wonderful sentiment. I will go further and say, it is most beautiful when being inexplicable. It dominates us, as a sub-set, yet contains and includes us - and we marvel at it - not at our mastery and prowess.

    --
    "Flyin' in just a sweet place,
    Never been known to fail..."
  69. Re:Bull by Jeremiah+Cornelius · · Score: 1

    Yes.

    I do not think that with reduction of variables, we can be plottted like pool-balls on a frictionless surface, bounded by perfect elasticity.

    The other parable I like for this, is Groundhog Day. :-)

    --
    "Flyin' in just a sweet place,
    Never been known to fail..."
  70. Re:sometimes you gotta think by volmtech · · Score: 1

    Be very afraid of a group of white men who want something. The indigenous peoples of the Americas found that out. When people are the same it's very easy to focus your energies in the same direction.

    When you are hanging out in your diverse group are you the inept and incompetent one?

  71. Re:Bull by Samantha+Wright · · Score: 1

    Are you sure? Consider a poem. The best formalist poetry (not counting free-form poetry) fits an incredible number of very difficult constraints and yet creates an intricate image without apparent effort. If that poem is then labelled with its metre by someone who understands that metre, and then you try to reproduce the same beauty and find you cannot, then that frustration commands a much higher respect for the author than merely witnessing the poem's beauty from afar (perhaps, for our metaphor's sake, in a language you don't even understand, thus making it nothing more than beautiful gibberish) and having no further insight into how it works.

    I, for one, definitely prefer marvelling at the beauty of how something works and how intricate its assembly is, not just the image it creates from afar. That image is merely an illusion; more a part of your imagination and expectations than of the thing itself.

    --
    Bio questions? Ask me to start a Q&A journal. Computer analogies available for most topics!
  72. Re:Bull by Samantha+Wright · · Score: 1

    Groundhog Day isn't a parable for that at all—Bill Murray keeps his knowledge of the universe through each iteration of the day, and is shaped by his experiences. In fact, it agrees with the alternative, as he is able to predict the behaviours of absolutely everyone every single time, as they have no knowledge of subsequent events. They have no innate randomness; they are completely deterministic.

    --
    Bio questions? Ask me to start a Q&A journal. Computer analogies available for most topics!