Evolving Rules of a Wargame

We then began to humanise that wild and fearful fowl, the gun. We decided that a gun could not be fired if there were not six—afterwards we reduced the number to four—men within six inches of it. And we ruled that a gun could not both fire and move in the same general move: it could either be fired or moved (or left alone). If there were less than six men within six inches of a gun, then we tried letting it fire as many shots as there were men, and we permitted a single man to move a gun,...

 What is a "Law of Nature"?

Our modern understanding of the term "law of nature" is an issue philosophers argue at length, and it is a more subde question than one may at first think. For example, the philosopher John W. Carroll compared the statement "All gold spheres are less than a mile in diameter" to a statement like "All uranium-23 spheres are less than a mile in diameter." Our observations of the world tell us that there are no gold spheres larger than a mile wide, and we can be pretty confident there never will ...