ivegotyou wrote:
Sand, dont forget that Brazil, Spain, Australia and even my own country has this mixing thing going on, and nothing like that's gonna happen.
It's not a matter of different current racial groups having progeny, its a matter that genetic engineering is in its very basic infancy and the thousand years is a hell of a long time. In another half century or so the technical capabilities of the field will most probably be able to make people that can live in environments far more alien than those found even on this planet, people than could walk naked on the airless surface of the Moon, People that could grow wings to fly like birds and make the wings photosynthetic to supply energy from sunlight, people with four, ten or more legs that could live on a high gravity planet comfortably, people whose physiology contains electronic circuitry for radio communication or even visual transmission, etc., etc.. There are endless possibilities and these people will only vaguely resemble the people of today. Assuming, of course, humanity and civilization survives the governance of those now in power. That's a very big if.