Freeman Dyson's Fears

Dyson came up with an idea to search the skies for imprints where there's a lot of radiation but no visible light. A futurist named robert bradberry said that if you really wanted to make these spheres efficient, you'd make em in like the same manner as those russian nesting dolls are made. And freeman dyson just hung his head, went into his roomnd, shut the door and lay down on his bed for a while. The endye ah.