31 MAY 2015 by ideonexus
Speciation of the Human Race
On a time-scale of a thousand years, neither politics nor
technology is predictable. China and Japan are the only
major political units that have lasted that long. A thousand
years ago, Europe was an unimportant peninsula
lying on the edge of the more advanced and civilized
Arab world. The technologies of today would be unintelligible
to our ancestors of a millennium ago. The
only human institutions that retain their identities over
a thousand years are languages, cultures, and religions.
Per...Folksonomies: futurism speciation
Folksonomies: futurism speciation
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notes
notes26 MAY 2015 by ideonexus
Flynn-Dickens Model for IQ Gains
Take those born with genes that make them a bit taller and quicker than average. When they start school, they are likely to be a bit better at basketball. The advantage may be modest but then reciprocal causation between the talent advantage and environment kicks in. Because you are better at basketball, you are likely to enjoy it more and play it more than someone who is bit slow or short or overweight. That makes you better still. Your genetic advantage is upgrading your environment, the am...
1 If g-factor is inherited, then how do we explain the Flynn Effect? This model suggests genetic advantages translates into environmental advantage, the environment feeds back to become more challenging.
21 SEP 2011 by ideonexus
Human Race Differences the Result of Sexual Selection
Most of the genetic differences between races are trivial. And yet others,
those physical differences between a Japanese individual and a Finn,
a Masai, and an Inuit, are striking. We have the interesting situation,
then, that the overall differences in gene sequences between peoples are
minor, yet those same groups show dramatic differences in a range of
visually apparent traits, such as skin color, hair color, body form, and
nose shape. These obvious physical differences are not characteris... 1 notes
notesCultural norms in different societies probably shaped many of the physical differences we see between races today, different definitions of beauty.
21 SEP 2011 by ideonexus
There Are Human Races
In response to these distasteful episodes of racism, some scientists
have overreacted, arguing that human races have no biological reality
and are merely sociopolitical “constructs” that don’t merit scientific
study. But to biologists, race—so long as it doesn’t apply to humans!—
has always been a perfectly respectable term. Races (also called “subspecies”
or “ecotypes”) are simply populations of a species that are both
geographically separated and differ genetically in on... 1 notes
notesIt is wrong to pretend they do not exist, but we should remember that the differences between human races are minor compared to the genetic differences between individuals within a race.
03 MAY 2011 by ideonexus
Genetic Similarity Among All Humans
Every human being has two parents, four grandparents, eight great-grandparents, sixteen great-great-grandparents, and so on. A mere thirty generations back—in, roughly, A.D. 1066—you had more than a billion direct ancestors in the same generation (2 to the power of 30), Since there were fewer than a billion people alive at that time in the whole world, many of them were your ancestors two or three times over. If, like me, you are of British descent, the chances are that most all of the fe...Folksonomies: human evolution genetics
Folksonomies: human evolution genetics
1 notes
notesThe genetic differences between those with the same geographic background exceeds the difference between those of different "races."
