a b s t r a c tWe examine the diffusion of a successful and an unsuccessful innovation among hunter-gatherers in the western Great Basin, using a diffusion of innovation model. Modern and historical studies on the diffusion of innovations suggest that diffusion processes follow S-shaped curves, with small numbers of early adopters, followed by more rapid uptick in the rate of diffusion as the majority adopt a technology, concluding again with small numbers of late-adopting laggards. Distributions of luminescence dates on surface-collected pottery sherds show that the technology had a long period of experimentation. Beginning about AD 1000, direct-rimmed pots were introduced in Southern Owens Valley and were used in small numbers over hundreds of years. Likewise, around AD 1350 pots with recurved rims were introduced in Death Valley and were also used in small numbers. Around AD 1550 the direct-rimmed technology diffused to the east, to China Lake and Death Valley, where it was rapidly adopted. By contrast, recurved-rim technologies were abandoned, a failed innovation. Our data suggest that prehistoric pottery diffusions follow a similar S-shaped curve, but that diffusion among hunter-gatherers happens at a much slower rate, over centuries instead of decades.Ó 2014 Elsevier Inc. All rights reserved.
IntroductionOne of the key components of human technology is information, and the means by which such information spreads among potential users. Anthropologists, especially archaeologists, have long made variation in technology a major focus of research. The archaeological record documents a remarkable and diverse range of technologies over time and across space. It is clear that technology, much more so than human biology, has been the major force in the spread of humans across the globe, promoting occupation of even the harshest of arctic, desert, and high altitude environments.One long-standing pursuit of archaeologists is the identification of the oldest instance of a particular technology (e.g., Kuttruff et al., 1998;Pinhasi et al., 2010) since it is assumed that these events mark important inventions in human evolution (e.g., oldest fire, oldest tools) and their recognition contributes to national pride (e.g., oldest noodle). However, documenting the oldest often erroneously treats technological innovation as a single instance of human ingenuity (i.e., the ''solitary genius''), rather than placing technology in a broader evolutionary context. A similar argument can be made regarding the youngest, or last, instance of a technology (i.e., its extinction). As Basalla (1988) has argued, changes in technology are contingent since technological innovation continually borrows ideas and materials from other domains. The evolution of technologies, then, focuses on issues such as the technological environment and context of innovation, recombination and inheritance, the production and winnowing of technological variation, and rates of technological change (Henrich, 2001).Such an approach is common among scholars of contem...