The author himself has often denied that the stories in this book are prophecy. Yet it is apparent that some of Heinlein's fictional forecasts have already come true - not literally but symbolically. 'The Roads Must Roll' predicts urban sprawl, and anticipates Jimmy Hoffa's threat of a nationwide transport strike. The 1969 newspaper headlines in Methuselah's Children, illustrating the character of 'The Crazy Years' - Heinlein's term for the present era - seem less fantastic now than they did in 1941.

'Blowups Happen', written and published five years before the Bomb, is based on a series of shrewd guesses that turned out to be wrong. The specific dilemma of that story never became real; nevertheless, it mirrors the real, agonizing dilemma of atomic power with which we have been living since 1945.

Some of these stories are minor entertainments, but one, at least, is a major work of art: 'The Man Who Sold the Moon'.

Written with deceptive ease and simplicity, it functions brilliantly on half a dozen levels at once. It is a story of man's conquest of the Moon, a penetrating essay on robber-baron capitalism, and a warm, utterly convincing and human portrait of an extraordinary man.

As for the still-unfolding future, there are guideposts and warnings here. Heinlein continually reminds us that history is a process, not something dead and embalmed in textbooks. The ultimate problem is man's control of his own inventions-not only the minor ones, like the crossbow and the atom bomb, but the major inventions-language, culture and technology. We are a tough and resourceful lot, all things considered; our descendants will need to be tougher and more resourceful still. The odds are all against them. The stars are high, life is short, and the house always takes a percentage. But Man himself is so unlikely that if he did not exist, his possibility would not be worth discussing. Heinlein's money is on Man; and I have a hunch that the next century will prove him right.

The Anchorage

Milford, Pennsylvania

THE chairman rapped loudly for order. Gradually the catcalls and boos died away as several self-appointed sergeants-at-arms persuaded a few hot-headed individuals to sit down. The speaker on the rostrum by the chairman seemed unaware of the disturbance. His bland, faintly insolent face was impassive. The chairman turned to the speaker, and addressed him, in a voice in which anger and annoyance were barely restrained.

"Doctor Pinero," - the "Doctor" was faintly stressed - "I must apologize to you for the unseemly outburst during your remarks. I am surprised that my colleagues should so far forget the dignity proper to men of science as to interrupt a speaker, no matter," he paused and set his mouth, "no matter how great the provocation." Pinero smiled in his face, a smile that was in some way an open insult. The chairman visibly controlled his temper and continued, "I am anxious that the program be concluded decently and in order. I want you to finish your remarks. Nevertheless, I must ask you to refrain from affronting our intelligence with ideas that any educated man knows to be fallacious. Please confine yourself to your discovery - if you have made one."

Pinero spread his fat white hands, palms down. "How can I possibly put a new idea into your heads, if I do not first remove your delusions?"

The audience stirred and muttered. Someone shouted from the rear of the hail, "Throw the charlatan out! We've had enough." The chairman pounded his gavel.

"Gentlemen! Please!" Then to Pinero, "Must I remind you that you are not a member of this body, and that we did not invite you?"

Pinero's eyebrows lifted. "So? I seem to remember an invitation on the letterhead of the Academy?"

The chairman chewed his lower lip before replying. "True. I wrote that invitation myself. But it was at the request of one of the trustees - a fine public-spirited gentleman, but not a scientist, not a member of the Academy."

Pinero smiled his irritating smile. "So? I should have guessed. Old Bidwell, not so, of Amalgamated Life Insurance? And he wanted his trained seals to expose me as a fraud, yes? For if I can tell a man the day of his own death, no one will buy his pretty policies. But how can you expose me, if you will not listen to me first? Even supposing you had the wit to understand me? Bah! He has sent jackals to tear down a lion." He deliberately turned his back on them. The muttering of the crowd swelled and took on a vicious tone. The chairman cried vainly for order. There arose a figure in the front row.

"Mister Chairman!"

The chairman grasped the opening and shouted, "Gentlemen! Doctor Van RheinSmitt has the floor." The commotion died away.

The doctor cleared his throat, smoothed the forelock of his beautiful white hair, and thrust one hand into a side pocket of his smartly tailored trousers. He assumed his women's club manner.

"Mister Chairman, fellow members of the Academy of Science, let us have tolerance. Even a murderer has the right to say his say before the state exacts its tribute. Shall we do less? Even though one may be intellectually certain of the verdict? I grant Doctor Pinero every consideration that should be given by this august body to any unaffiliated colleague, even though" - he bowed slightly in Pinero's direction - "we may not be familiar with the university which bestowed his degree. If what he has to say is false, it can not harm us. If what he has to say is true, we should know it." His mellow cultivated voice rolled on, soothing and calming. "If the eminent doctor's manner appears a trifle in urbane for our tastes, we must bear in mind that the doctor may be from a place, or a stratum, not so meticulous in these little matters. Now our good friend and benefactor has asked us to hear this person and carefully assess the merit of his claims. Let us do so with dignity and decorum."

He sat down to a rumble of applause, comfortably aware that he had enhanced his reputation as an intellectual leader. Tomorrow the papers would again mention the good sense and persuasive personality of "America's handsomest University President". Who knew? Perhaps old Bidwell would come through with that swimming pool donation.

When the applause had ceased, the chairman turned to where the center of the disturbance sat, hands folded over his little round belly, face serene.

"Will you continue, Doctor Pinero?"

"Why should I?"

The chairman shrugged his shoulders. "You came for that purpose."

Pinero arose. "So true. So very true. But was I wise to come? Is there anyone here who has an open mind who can stare a bare fact in the face without blushing? I think not. Even that so beautiful gentleman who asked you to hear me out has already judged me and condemned me. He seeks order, not truth. Suppose truth defies order, will he accept it? Will you? I think not. Still, if I do not speak, you will win your point by default. The little man in the street will think that you little men have exposed me, Pinero, as a hoaxer, a pretender. That does not suit my plans. I will speak."

"I will repeat my discovery. In simple language I have invented a technique to tell how long a man will live. I can give you advance billing of the Angel of Death. I can tell you when the Black Camel will kneel at your door. In five minutes time with my apparatus I can tell any of you how many grains of sand are still left in your hourglass." He paused and folded his arms across his chest. For a moment no one spoke. The audience grew restless. Finally the chairman intervened.

"You aren't finished, Doctor Pinero?"

"What more is there to say?"