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By Root 1168 0

perhaps built on differing social, economic or political assumptions, or having different ethnic antecedents—is appealing, an opportunity for those deeply disenchanted with terrestrial civilizations to strike out on their own somewhere else. In its earlier history, America provided such an opportunity for the restless, ambitious and adventurous. Space cities would be a kind of America in the skies. They also would greatly enhance the survival potential of the human species. But the project is extremely expensive, costing at minimum about the same as one Vietnam war (in resources, not in lives). In addition, the idea has the worrisome overtone of abandoning the problems on the Earth—where, after all, self-contained pioneering communities can be established at much less cost.

Clearly, there are more technological projects now possible than we can afford. Some of them may be extremely cost-effective but may have such large start-up costs as to remain impractical. Others may require a daring initial investment of resources, which will work a benevolent revolution in our society. Such options have to be considered extremely carefully. The most prudent strategy calls for combining low-risk/moderate-yield and moderate-risk/high-yield endeavors.

For such technological initiatives to be understood and supported, significant improvements in public understanding of science and technology are essential. We are thinking beings. Our minds are our distinguishing characteristic as a species. We are not stronger or swifter than many other animals that share this planet with us. We are only smarter. In addition to the immense practical benefit of having a scientifically literate public, the contemplation of science and technology permits us to exercise our intellectual faculties to the limits of our capabilities. Science is an exploration of the intricate, subtle and awesome universe we inhabit. Those who practice it know, at least on occasion, a rare kind of exhilaration that Socrates said was the greatest of human pleasures. It is a communicable pleasure. To facilitate informed public participation in technological decision making, to decrease the alienation too many citizens feel from our technological society, and for the sheer joy that comes from knowing a deep thing well, we need better science education, a superior communication of its powers and delights. A simple place to start is to undo the self-destructive decline in federal scholarships and fellowships for science researchers and science teachers at the college, graduate and postdoctoral levels.

The most effective agents to communicate science to the public are television, motion pictures and newspapers—where the science offerings are often dreary, inaccurate, ponderous, grossly caricatured or (as with much Saturday-morning commercial television programing for children) hostile to science. There have been astonishing recent findings on the exploration of the planets, the role of small brain proteins in affecting our emotional lives, the collisions of continents, the evolution of the human species (and the extent to which our past prefigures our future), the ultimate structure of matter (and the question of whether there are elementary particles or an infinite regress of them), the attempt to communicate with civilizations on planets of other stars, the nature of the genetic code (which determines our heredity and makes us cousins to all the other plants and animals on our planet), and the ultimate questions of the origin, nature and fate of life, worlds and the universe as a whole. Recent findings on these questions can be understood by any intelligent person. Why are they so rarely discussed in the media, in schools, in everyday conversation?

Civilizations can be characterized by how they approach such questions, how they nourish the mind as well as the body. The modern scientific pursuit of these questions represents an attempt to acquire a generally accepted view of our place in the cosmos; it requires open-minded creativity, tough-minded skepticism and a fresh sense of