单项选择题

The inhabitants of the earth are divided not only by race, nation, religion or ideology, but also, in a sense, by their position in time. Examining-the present population of I he globe, we find a tiny group who still live, hunting and food-foraging, as men did millennia ago.
Others, the vast majority of mankind, depend no I on bear-hunting or berry-picking, but on agriculture. They live, in many respects, as their ancestors did centuries ago. These two groups taken together compose perhaps 70 percent of all living human beings. They are people of the past.
By contrast, somewhat more than 25 percent of the earth’s population can be found in the industrialized societies. They lead modern lives. They are products of the first half of the twentieth century, molded by mechanization and mass education, brought up with lingering memories of their own country’s agricultural past. They are, in effect, the people of the present.
The remaining 2 or 3 percent of the world’s population, however, are no longer people of either the past or the present. For within the main canters of technological and cultural change, in Santa Monica, California and Can-, bridge, Massachusetts, in New York and London, and Tokyo, are millions of men and women who can already be said to be living the way of life of I he future. Trend makers often without being aware of it, they live today as millions will live tomorrow. And while they account for only a few percent of I lie global population today, they already form an international nation of the future in our midst. They are the advance agents of man, the earliest citizens of the world-wide super-industrial society now in the throes of birth.
What makes them different from the rest of mankind Certainly, they are richer, better educated, more mobile than the majority of I he human race. They also live longer. But what specifically marks the people of the future is the fact that they are already caught up in a new, stepped-up pace of life. They "live faster" than the people around them.

The main argument in this pa$ sage is that ()

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