[Junior]

Boy are you taking that out of context. Sure, the descendents of a single woman 200,000 comprise the entire geneology of the human race. However, this does not imply that she existed by herself. The phenomenon has been documented time and again. The residents of Pitcairn Island, for instance, descended from the Bounty mutineers, have had the number of surnames dwindle over the past two centuries. If trends continue, they will eventually be reduced to a single surname.

[wideawake]

If trends continue, they will eventually be reduced to a single surname.

Preposterous analogy. Surnames are not a proxy for genetics and Pitcairn is hardly a proxy for general population.

A person receives only his father's surname, while he receives both his mother and father's heritage.

And Pitcairn's population and genetic diversity is dwindling because the more resourceful young Islanders leave the Island never to return.