After a century of research, there is still no widely accepted explanation for the spread of farming in Europe. Topdown explanations stress climate change, population increase, or geographic diffusion, but they distort human action reductionistically. Bottom-up explanations stress the local, meaningful choices involved in becoming a farmer, but they do not account for why the Neolithic transition in Europe was so widespread and generally unidirectional. The real problem is theoretical; we need to consider the transformative effects of human-material culture relationships and to relate humans, things, and environments at multiple scales. This article views the Neolithic as a set of new human-material relationships which were experimented with variably but which had unintended consequences resulting in an increasingly coherent, structured, and narrowly based social world. This interplay of local human action and emergent causation made the Neolithic transition difficult to reverse locally; the Neolithic was easy to get into but hard to get out of. On the continental scale, one consequence of this was its slow, patchy, but steady and ultimately almost complete expansion across Europe. As a metamodel, this accommodates current models of the local origin of farming while linking these to emergent large-scale historical patterns.Things inevitably change you as you use them. Consider the Internet. In functional terms, the Internet exists simply to provide information. Yet the paradox everybody experiences is that the Internet increases rather than slakes your thirst for information: the more information the Internet supplies you with, the more you find yourself needing, as your plans and activities anticipate that all knowledge is instantly knowable and communicable. Moreover, instant distance-free knowledge and communication have unintentionally transformed many working lives in both obvious and subtle ways such as accelerating the tempo and omnipresence of work. The Internet has changed our social landscape of action. We could repeat the same argument for every major new technology from metals to the automobile. Yet, surprisingly, nobody has yet seriously considered the transformative potential inherent in the relations between humans and material things in explanations of the origins and spread of farming-surely one of the major transformations of human history.The goal of this article is to propose a new explanation for the spread of farming in Europe. My starting point is the observation above: that material things are not merely neutral objects of human action but have the potential to transform John Robb is Reader in European Prehistory in the Department of Archaeology of Cambridge University (Downing Street, Cambridge CB2 3DZ, United Kingdom [Jer39@cam.ac.uk]). This paper was submitted 1 IV 11, accepted 23 IX 12, and electronically published 30 X 13. the lives of the humans using them. If we consider the Neolithic as a new set of material things and techniques, different from Mesolithic ones, surely we need to ...