I’d felt it before, the Fear, but only the fringes, the least edge. Now it was vast, the very hollow of night, an emptiness cold and implacable. It was last words, deep space, every long goodbye in the history of our species. It made me cringe, whining. I was shaking, groveling, crying. They lecture us on it, warn us, try to explain it away as a kind of temporary agoraphobia endemic to our work. But we know what it is; surrogates know and handlers can’t. No explanation has ever even come close.