"If you look across a host of measures at adoption studies, fraternal v. identical twin studies, twins-raised-apart studies, the history of early childhood intervention research, naturally-occurring experiments, differences between societies, changes over history, and so forth, you tend to come up with nature and nurture as being about equally important: maybe fifty-fifty. The glass is roughly half-full and half-empty."

Source : "A Short, Stylized Dialogue On Epigenetics". www.vdare.com. October 26, 2012.

Steve Sailer

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