Rosa Luxemburg defended a view of spontaneism as a way of according strategic priority to popular initiatives over the directives of vanguard parties. But she never worked out a theory of spontaneism, and consequently it has typically been dismissed as lacking solid grounds. In this paper, I take an initial step toward rehabilitating spontaneism by rethinking its assumptions concerning historical agency in embodied habitual terms. After first outlining Luxemburg’s view of spontaneism itself, I consider individual embodied action and focus on (...) the sort of spontaneity that is exhibited in various forms of skilled expertise. This spontaneity reflects an acquired habitual predispositionality that is never a matter of mindless automaticity, and which in certain cases can involve significant degrees of improvisational creativity. Bringing this to light secures a basic plausibility for spontaneism at the level of individual agency by showing how socially transformative action could possibly be engaged in spontaneously. (shrink)