If he is this good at acting crazy, it's because he is. Nor is military psychology mistaken in this regard: in this sense, all crazy people simulate, and this lack of distinction is the worst kind of subversion. It is against this lack of distinction that classical reason armed itself in all its categories. But it is what today again outflanks them, submerging the principle of truth.

The Precession of Simulcra - Simulacra and Simulation (1988)