Year by year, his knowledge has become more specialized, and much deeper. He's better and better able to do the important work the world needs done, but in learning to do it, he's necessarily lost some of the broad and enthusiastic scope he once had.
These are early stories of the early days of science-fiction. Radar hadn't been invented; we missed that idea. But while these stories don't have the finesse of later work—they have a bounding enthusiasm that belongs with a young field, designed for and built by young men. Most of the writers of those early stories were, like myself, college students. (Piracy Preferred was written while I was a sophomore at M.I.T.)
For old-timers in science-fiction—these are typical of the days when the field was starting. They've got a fine flavor of our own younger enthusiasm.
For new readers of science-fiction—these have the stuff that laid the groundwork of today's work, they're the stories that were meant for young imaginations, for people who wanted to think about the world they had to build in the years to come.
Along about sixteen to nineteen, a young man has to decide what is, for him, the Job That Needs Doing—and get ready to get in and pitch. If he selects well, selects with understanding and foresight, he'll pick a job that does need doing, one that will return rewards in satisfaction as well as money. No other man can pick that for him; he must choose the Job that he feels fitting.
Crystal balls can be bought fairly reasonably—but they don't work well. History books can be bought even more cheaply, and they're moderately reliable. (Though necessarily filtered through the cultural attitudes of the man who wrote them.) But they don't work well as predicting machines, because the world is changing too rapidly.
The world today, for instance, needs engineers desperately. There a lot of jobs that the Nation would like to get done that can't even be started; not enough engineers available.
Fifty years ago the engineering student was a sort of Second Class Citizen of the college campus. Today the Liberal Arts are fighting for a come-back, the pendulum having swung considerably too far in the other direction.
So science-fiction has a very real function to the teen-agers; it presents varying ideas of what the world in which he will live his adult life will be interested in.
This is 1953. My son will graduate in 1955. The period of his peak earning power should be when he's about forty to sixty—about 1970, say, to 1990. With the progress being made in understanding of health and physical vigor, it's apt to run beyond 2000 A.D., however.