My knowledge of physics influenced channeling to the extent that I have attempted to treat channeling as if it were a form of science and engineering rather than magic. You might say that the Laws of Thermodynamics apply in altered form. I expect that my reading in history has influenced the books more than my knowledge of physics or engineering. I have not tried to copy any actual historical culture or period, but a knowledge of the way things actually were done at various times has helped shape my vision of the world of The Wheel, as has the study of cultures meeting that are strange to one another, and cultures undergoing change, willingly or, as is more often the case, unwillingly. I used to spend summers working on my grandfather’s farm, a very old-fashioned set-up even then, so I have some feel for country life, and I like to hunt and fish, and spent a good part of my growing up in the woods or on the water, so I have a fair feel for the outdoors and the forests, which also helps. And of course, I can use a little of my Vietnam experience. Not for setting out the actual battles, but because I know firsthand the confusion of battle and what it is like to try to maintain some semblance or order while all around you random events are pushing everything toward chaos.