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By Root 2186 0

dying, population will quickly soar to incredible levels. Unsustainable levels, until there will be a crash. So. This has to be faced now. The birth rate simply has to be cut, at least for a while. It isn’t a situation that has to last forever. The longevity treatments are not immortality treatments. Eventually the first generations given the treatment will die. And therein lies the solution to the problem. Say the current population on the two worlds is fifteen billion. That means we’re already starting from a bad spot. Given the severity of the problem, as long as you get to be a parent at all, there is no reason to complain; it’s your own longevity causing the problem after all, and parenthood is parenthood, one child or ten. So say that each person partners, and the two parents have only a single child, so that there is one child for every two people in the previous generation. Say that means seven and a half billion children out of this present generation. And they are all given the longevity treatment too, of course, and cosseted until they are no doubt the insufferable royalty of the world. And they go on to have four billion children, the new royalty, and that generation has two, and so on. All of them are alive at once, and the population is rising all the time, but at a lower rate as time passes. And then at some point, maybe a hundred years from now, maybe a thousand years from now, that first generation will die. It may happen over a fairly short period of time, but fast or slow, when the process is done, the overall population will be almost halved. At that point people can look at the situation, the infrastructure, the environments of the two worlds— the carrying capacity of the entire solar system, whatever that might be. After the biggest generations are gone, people can start having two children each, perhaps, so that there is replacement, and a steady state. Or whatever. When they have that kind of choice, the population crisis will be over. It could take a thousand years.”

Nirgal stopped to look outside of himself, to stare around at the audience; people watching him rapt, silent. He gestured with a hand, to draw them all together. “In the meantime, we have to help each other. We have to regulate ourselves, we have to take care of the land. And it’s here, in this part of the project, that Mars can help Earth. First, we are an experiment in taking care of the land. Everyone learns from that, and some lessons can be applied here. Then, more importantly, though most of the population will always be located here on Earth, a goodly fraction of it can move to Mars. It will help ease the situation, and we’ll be happy to take them. We have an obligation to take on as many people as we possibly can, because we on Mars are Terrans still, and we are all in this together. Earth and Mars— and there are other habitable worlds in the solar system as well, none as big as our two, but there are a lot of them. And by using them all, and cooperating, we can get through the populated years. And walk out into a golden age.”

• • •

That day’s talk made quite an impression, as far as one could tell from within the eye of the media storm. Nirgal conversed for hours every day after that, with group after group, elaborating the ideas he had first expressed in that meeting. It was exhausting work, and after a few weeks of it without any letup, he looked out his bedroom window one cloudless morning, and went out and talked to his escort about making an expedition. And the escort agreed to tell the people in Bern he was touring privately; and they took a train up into the Alps.

The train ran south from Bern, past a long blue lake called the Thuner See, which was flanked by steep grassy alps, and ramparts and spires of gray granite. The lakeside towns were topped by slate roof tiles, dominated by ancient trees and an occasional castle, everything in perfect repair. The vast green pastures between the towns were dotted by big wooden farmhouses, with red carnations in flower boxes at every window and balcony. It was a style that had