Imagine an 8-year-old child who, after insisting on skating on a cobblestone pavé, sits on the steps of a 19thcentury fountain, legs shaking and sweaty. The June light radiates the early afternoon and little drops of water sprayed by the fall cool the back of his head. Leaning on his elbows behind his back, he looks at the sky and starts imagining a concentric universe he mentally travels through. Up to 1000 meters in the cloud sphere, he intersects the lunar orbit and, within his mind, other planets that are familiar to him. Daring, he keeps going beyond the solar system and thinks about that dark world made of tiny and endless lights, a beyond without solution. Facing the repeated sentence of an endless infinite, his central nervous system jams. He can’t bear it. Anguish sets in.