 The manifesto was signed by Stiegler and the other co-founders of the group, George Collins, , Catherine Perret and Caroline Stiegler.An updated manifesto was released in 2010.On 18 September 2010 Stiegler opened his own philosophy school (called "pharmakon.fr") in the small French town of Épineuil-le-Fleuriel, in the department of Cher.