Haven't you ever heard of morale-building?" Khouri had asked. "Heard of it," Volyova said. "Don't happen to agree with it. Would you rather be happy … - Alastair Reynolds

Relativity distorted classical expectations in a way that Clavain still did not find entirely intuitive. Slam two objects towards each other, each with individual velocities just below light-speed, and the classical result for their closing velocity would be the sum of their individual speeds: just under twice the speed of light. Yet the true result, confirmed with numbing precision, was that the objects saw each other approach with a combined speed that was still just below the speed of light. Similarly, the relativistic closing velocity for two objects moving towards each other with individual speeds of one-half of light-speed was not light-speed itself, but eight-tenths of it. It was the way the universe was put together, and yet it was not something the human mind had evolved to accept.

“How are the internal complications, anyway? Aren’t the other branches of government getting a little suspicious about all these machinations?”
“Let’s just say that one or two discreet assassinations may still have to be performed,” Khouri said.

Ghosts are not the souls of the dead, but the souls of people written out of history when history changes.