A man will always be willing to buy something he wants, and believes in, even if it is impossible, rather than something he believes is impossible. So. sell him what he thinks he wants!
Was it a wild talent that MacReedy had, or was it just prophetic genius that led him to figure out new, improved ordnance weapons and make models of them--before the armed forces had them? Whichever it was, MacReedy was both valuable and dangerous--and when the general saw MacReedy's final figure, the weapons following the mobile rocket A-missile launcher....
On the Earth of the future, cities are overcrowded and the elite have nothing to do but buy fame from people who really do the work. A faster than light drive is invented and Jed Cochrane, a television producer, seizes the chance to change the course of history and free the people who are willing to work for themselves and not be faceless proles.
Tomorrow's technocracy will produce more and more things for better living. It will produce other things, also; among them, criminals too despicable to live on this earth. Too abominable to breathe our free air.
Some smart people invent a way to dispose of rubbish, and a few other things. The CIA want their technology, and they won't hand it over. Things heat up. Set in Australia.