He started working at the center of the cluster where the chain reaction was to start. The stars here were hot, but not quite hot enough, so he took one of them apart and distributed it among three others. The additional mass increased the gravitational forces within those three stars, making them contract and grow hotter until the radiation pressure increased to balance the gravitational pressure and the system returned to equilibrium. They were now burning hotter and faster, plus they had the benefit of extra helium in their cores, bringing them all the nearer to the day of their explosive change of life.
He repeated this process again and again and still more times until the actions became almost mechanical. Aside from having to keep a careful watch to make sure that none of the masses
