"One can understand it that way, but Time Hunters are more akin to hunting dogs than higher-level entities themselves. They roam the earth, eliminating individuals who could potentially cause an impact, in order to keep their farmed civilizations motivated to grow and not spoil the... taste mid-growth."
Wen Chengzhi sighed.
"Isn't it easy to understand? Just like people raising livestock. If growth is entirely induced by hormones, the taste of the meat would be worse than that of free-range livestock. If a civilization is aware that its continued growth is merely for becoming food, regardless of the choices they make, non of them would be waiting passively for the inevitable."