The Co-ordinator said, "Man adapts, Amschel. Have you studied the development of the United States? During her first century and a half the need was for population to fill the vast lands wrested from the Amer-Inds. Families of eight, ten, and twelve children were the common thing, much larger ones were not unknown. And the generations crowded one against another; a girl worried about spinsterhood if she reached seventeen unwed. But in the next century? The frontier vanished, the driving need for population was gone. Not only were drastic immigration laws passed, but the family shrunk rapidly until by mid-Twentieth Century the usual consisted of two or three children, and even the childless family became increasingly common." Mayer frowned impatiently, "But still, a thousand years. There is always famine, war, disease ..." Plekhanov snorted patronizingly. "Forty to fifty generations, Amschel? Starting with a hundred colonists? Where are your mathematics?" The Co-ordinator said, "The proof is there. We estimate that each of Rigel's planets now supports a population of nearly one billion." "To be more exact," Plekhanov rumbled, "some nine hundred million on Genoa, seven and a half on Texcoco." Mayer smiled wryly. "I wonder what the residents of each of these planets call their worlds. Hardly the same names we have arbitrarily bestowed." "Probably each call theirs _The World_," the Co-ordinator smiled. "After all, the basic language, in spite of a thousand years, is still Amer-English. However, I assume you are familiar with our method of naming. The most advanced culture on Rigel's first planet is to be compared to the Italian cities during Europe's feudalistic era. We have named that planet Genoa. The most advanced nation of the second planet is comparable to the Aztecs at the time of the conquest. We considered Tenochtitlan but it seemed a tongue twister, so Texcoco is the alternative." "Modernizing Genoa," Mayer mused, "should be considerably easier than the task on semiprimitive Texcoco." Plekhanov shrugged, "Not necessarily." The Co-ordinator held up a hand and smiled at them. "Please, no debates on methods at present. An hour from now you will be in space with a year of travel before you. During that time you'll have opportunity for discussion, debate and hair pulling on every phase of your problem." His expression became more serious. "You are acquainted with the unique position you assume. These colonists are in your control to an extent no small group has ever dominated millions of others before. No Caesar ever exerted the power that will be in your educated hands. For a half century you will be as gods. Your science, your productive know-how, your medicine--if it comes to that, your weapons--are many centuries in advance of theirs. As I said before, your position should be humbling."