Abstract
Pragmatism presents itself as a technical reflection upon experimentation. This technique takes two forms : the evaluation of the propositions, utterances, and ideas through their effects ; the construction and invention of new propositions in charge of accounting for experimentation as a continuous movement of changes and transformations. This article attempts to reclaim this technical approach and to build on its basis a reflection on power . Such a reflection must break free from any definition which would link power to conservation, domination or mastery, and favour an approach attentive to effects and transformations