Post by Lone Wanderer on Feb 24, 2019 11:12:26 GMT
David Reich is a professor of genetics at Harvard and the author of the book “Who We Are and How We Got Here: Ancient DNA and the New Science of the Human Past.”
From my point of view, it should be possible for everyone to hold in their heads the following six truths:
1. “Race” is fundamentally a social category — not a biological one — as anthropologists have shown.
2. There are clear genetic contributors to many traits, including behavior.
3. Present-day human populations, which often but not always are correlated to today’s “race” categories, have in a number of instances been largely isolated from one another for tens of thousands of years. These long separations have provided adequate opportunity for the frequencies of genetic variations to change.
4. Genetic variations are likely to affect behavior and cognition just as they affect other traits, even though we know that the average genetic influences on behavior and cognition are strongly affected by upbringing and are likely to be more modest than genetic influences on bodily traits or disease.
5. The genetic variations that influence behavior in one population will almost certainly have an effect on behavior in others populations, even if the ways those genetic variations manifest in each population may be very different. Given that all genetically determined traits differ somewhat among populations, we should expect that there will be differences in the average effects, including in traits like behavior.
6. To insist that no meaningful average differences among human populations are possible is harmful. It is perceived as misleading, even patronizing, by the general public. And it encourages people not to trust the honesty of scholars and instead to embrace theories that are not scientifically grounded and often racist.
In short, I think everyone can understand that very modest differences across human population in the genetic influences on behavior and cognition are to be expected. And I think everyone can understand that even if we do not yet have any idea about what the difference are, we do not need to be worried about what we will find because we can already be sure that any differences will be small (far smaller than those among individuals).
As a society, we are already committed to giving everyone a full opportunity for self-realization — regardless of the particular hand each person is dealt from the deck of life. Since we are already committed to this, accommodating any slight differences in the average genetic influences on traits that might eventually be found should only be a little extra work to handle.
Source and full article
From my point of view, it should be possible for everyone to hold in their heads the following six truths:
1. “Race” is fundamentally a social category — not a biological one — as anthropologists have shown.
2. There are clear genetic contributors to many traits, including behavior.
3. Present-day human populations, which often but not always are correlated to today’s “race” categories, have in a number of instances been largely isolated from one another for tens of thousands of years. These long separations have provided adequate opportunity for the frequencies of genetic variations to change.
4. Genetic variations are likely to affect behavior and cognition just as they affect other traits, even though we know that the average genetic influences on behavior and cognition are strongly affected by upbringing and are likely to be more modest than genetic influences on bodily traits or disease.
5. The genetic variations that influence behavior in one population will almost certainly have an effect on behavior in others populations, even if the ways those genetic variations manifest in each population may be very different. Given that all genetically determined traits differ somewhat among populations, we should expect that there will be differences in the average effects, including in traits like behavior.
6. To insist that no meaningful average differences among human populations are possible is harmful. It is perceived as misleading, even patronizing, by the general public. And it encourages people not to trust the honesty of scholars and instead to embrace theories that are not scientifically grounded and often racist.
In short, I think everyone can understand that very modest differences across human population in the genetic influences on behavior and cognition are to be expected. And I think everyone can understand that even if we do not yet have any idea about what the difference are, we do not need to be worried about what we will find because we can already be sure that any differences will be small (far smaller than those among individuals).
As a society, we are already committed to giving everyone a full opportunity for self-realization — regardless of the particular hand each person is dealt from the deck of life. Since we are already committed to this, accommodating any slight differences in the average genetic influences on traits that might eventually be found should only be a little extra work to handle.
Source and full article
