http://www.w3.org/ns/prov#value | - pure replacement and pure diffusion are both false. the truth is somewhere in the middle. it doesn???t lean strongly to either side (this is where i think oppenheimer and sykes spin it, as their data is not the only game in town, and even their data does imply a non-trivial amount of newcomers within the past 2,000 years, especially anglo-saxons, scandinavians, etc.)
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