precise because they are restricted to a particular characteristic: retro-tech: more oriented toward old but smart inventions (not necessarily useful, durable and accessible), parallels can nevertheless be found with low-tech, because these innovations often are decentralized and simpler technologies (because manufactured by individuals) ". Wild-tech: beyond the high-tech / low-tech opposition, it intends to give "tools to better think these ways of manufacturing which escape any classification". The unclassifiable techs. Can also be linked to "tech rebel", a movement whose goal is to hack and to re-appropriate any type of technology. small-tech: opposed to "Big Tech", which includes the GAFAM. It thus referred to digital questions, "in the perspective of maintaining a high level of technological complexity but on the basis of the notions of commons, collaborative work and the principles of democracy and social justice" (s)lowtech, or slow-tech: uses the play-on-words (s)low / slow. Aims at: "exploring the drawbacks of technology and its effects on human health and development". Also indicates a movement aimed at reducing addiction to technology, especially among the youngsters. However, its highest similarity with the definition of low-techs is that it is restricted to technologies (of all kinds) that promote a slow lifestyle. easy-tech: technology easy to implement, to use, and accessible to all. At the heart of the commonly accepted definition of low-tech. no-tech: promotes a lifestyle avoiding the use of technology, when possible. It joins some technocritical writings on the negative and time-consuming aspect of most "modern" technologies. See for example no-tech magazine. Lo-Tek (or LoTek): name introduced by Julia Watson for her book "The Power of Lo — TEK - A global exploration of nature-based technology". The author brings together multigenerational knowledge and practices to "counter the idea that aboriginal innovation is primitive and exists isolated from technology. " TEK is the acronym for "Traditional Ecological Knowledge". Many definitions Binary definition According to the Cambridge International Dictionary of English, the concept of low-tech is simply defined as a technique that is not recent, or using old materials. Companies that are considered low-tech have a simple operation. The less sophisticated an object, the more low-tech. This definition does not take into account the ecological or social aspect, as it is only based on a simplistic definition of low-tech philosophy. The low-techs would then be seen as a "step backwards", and not as possible innovation. Also, with this definition, the "high-tech" (ex: the telegraph)