Conceive a world-society developed materially far beyond the wildest dreams of America. Unlimited power, derived partly from the artificial disintegration of atoms, partly from the actual annihilation of matter through the union of electrons and protons to form radiation, completely abolished the whole grotesque burden of drudgery which hitherto had seemed the inescapable price of civilization, nay of life itself. The vast economic routine of the world-community was carried on by the mere touching of appropriate buttons. Transport, mining, manufacture, and even agriculture were performed in this manner. And indeed in most cases the systematic co-ordination of these activities was itself the work of self-regulating machinery. Thus, not only was there no longer need for any human beings to spend their lives in unskilled monotonous labour, but further, much that earlier races would have regarded as highly skilled though stereotyped work, was now carried on by machinery. Only the pioneering of industry, the endless exhilarating research, invention, design and reorganization, which is incurred by an ever-changing society, still engaged the minds of men and women. And though this work was of course immense, it could not occupy the whole attention of a great world-community. Thus very much of the energy of the race was free to occupy itself with other no less difficult and exacting matters, or to seek recreation in its many admirable sports and arts. Materially every individual was a multi-millionaire, in that he had at his beck and call a great diversity of powerful mechanisms; but also he was a penniless friar, for he had no vestige of economic control over any other human being. He could fly through the upper air to the ends of the earth in an hour, or hang idle among the clouds all day long. His flying machine was no cumbersome aeroplane, but either a wingless aerial boat, or a mere suit of overalls in which he could disport himself with the freedom of a bird. Not only in the air, but in the sea also, he was free. He could stroll about the ocean bed, or gambol with the deep-sea fishes. And for habitation he could make his home, as he willed, either in a shack in the wilderness or in one of the great pylons which dwarfed the architecture even of the American age. He could possess this huge palace in loneliness and fill it with his possessions, to be automatically cared for without human service; or he could join with others and create a hive of social life. All these amenities he took for granted as the savage takes for granted the air which he breathes. And because they were as universally available as air, no one craved them in excess, and no one grudged another the use of them.
There is no doubt that 'force multipliers' - squad automatic weapons - have changed the character of warfare once again, just as their predecessors did during the First World War, if perhaps not to quite the same degree. In the immediate future it seems that most armies will be using some form of 5.56mm machine-gun at squad level, be it a box-fed LSW or belt-fed SAW. If there is a cloud on the horizon where modern light machine-guns are concerned it is that they are not powerful enough for long-range work, or for penetrating cover and light armour. Nevertheless, the new generation of light machine-guns will remain in use well into the next century, not least because they are popular with the soldiers who operate them, the machine-gunners. Likewise, there will still be a place for the heavier GPMG, which does have the 'punch' that the LSW lacks.Machine-guns themselves have become lighter, and their operating principles both more secure and more efficient; the ammunition they use has shrunk to a quarter of its original size and become almost 100 percent reliable. The one important thing which has not changed dramatically is the human component; the attitude with which man faces the prospect of death in battle, and how he prepares himself to face that possibility quite deliberately, for it was the original invention of the machine-gun which reformed that. More than any other single 'advance' in weapons technology, the machine-gun allowed an individual (or actually, a small team of men) to dominate a sector of the battlefield. They had an inhuman advantage which simply had to be exploited if they were to be on the winning side, whether their opponents were Zulus, Sioux, or Dervishes, or other industrialized nations to be beaten into last place in the race toward economic supremacy. Whether the machine-gun has been as important, in any sense at all of the word, as it near-contemporary, the internal combustion engine - or even, date one say it, the bicycle or sewing machine - is still to be decided, but there is one clear, irrefutable fact connected with its short history: it has killed tens of millions of men, women and children and blighted the lives of tens of millions more.