The article examines Teatro Edicola, a repurposed newsstand in San Severo transformed into the world’s smallest theatre, where six spectators experience 15‑minute performances at sub‑metre proximity. Drawing on neuroaesthetics, it argues that such extreme liveness intensifies emotional, physiological, and mirror‑neuron activation in ways conventional theatres cannot. The QR‑code entry mechanism further enhances agency and psychological ownership. The piece proposes Teatro Edicola as a low‑cost, transferable model for arts‑based wellbeing interventions, and as an ideal natural laboratory for psychophysiological research on proximity, empathy, and aesthetic experience. “Intensity does not collapse. It concentrates.”