In Guns, Germs, and Steel: The Fates of Human Societies, Jared Diamond explains that environmental differences rather than supposed racial superiority are responsible for Eurasian peoples developing technology more rapidly than other civilizations and expanding around the world. In order for nomadic hunter-gatherers to convert to an agrarian lifestyle, an area needs to have storable edible vegetation high in carbohydrates, a climate conducive to food storage, and animals that can be domesticated. These conditions lead to population growth and consolidation in villages, towns, and cities. Specialization of occupation in turn leads to technological innovation.
The Merriam-Webster Dictionary defines "sedentary" as: "not migratory, settled." Food production allows sedentary living, which in turn allows specialization that leads to technological development. Additionally, as Diamond explains in Chapter 13, "Necessity's Mother," a sedentary lifestyle makes possible not only portable technology such as bows and arrows that can be carried from place to place, but also larger items that cannot be transported. Diamond also emphasizes the importance of the diffusion of technology from one populated area to another, which depends upon favorable geographical and ecological situations. In summary, Diamond writes:
Hence, all other things being equal, technology develops fastest in large productive regions with large human populations, many potential inventors, and many competing societies.
In summary, sedentary living is made possible by food production. An abundance of food leads to large population centers. Large population centers give rise to specialties in occupations, which lead to the inventing of new technologies. Because the inventors are sedentary, they are able to invent large-scale as well as small-scale items.