Modern civilization is quite advanced with the advent of industrial manufacturing, electricity, and the free flow of information. A lot can be accomplished to a degree that trivializes The Seven Wonders of the World, with feats of knowledge, science and engineering. The technology also aids our modern lives, making us more productive and powerful than before.
The technology comes at great cost - if access to it is removed, society will be severely crippled with no effective means of production or sustenance. While most civilians in this environment have experienced a temporary loss through power brownouts and blackouts, there has not been one on a more permanent scale.
The causes for the loss range from a resource loss (such as generation of electrical power), to something drastic (such as being stranded on an island or different planet and having no rescue), to violent (such as global warfare, with or without nuclear weaponry.) In each of these three scenarios, you may or may not have access to supplies or pre-loss technology.
The objective of this book is to provide a method to recover from the loss and rebuild civilization. The difficulty for this will vary - you may have access to resources and arable land, or you may instead have to make due within a desert. Survival is usually possible as long as you can produce or collect enough food on a yearly basis; however, the secret on thriving is learning how to rebuild or replace the lost technology.
- Primitive technology