But when scientists looked, they didn't find remnants of harvested stars, decaying megastructures or scars of great interstellar wars.

但当科学家们仔细观测时，他们并没有发现被采集过的恒星、废弃的巨型结构或者史诗般的星际战争的痕迹。

In 2006, the Kalpana One Orbital Settlement  was proposed as an improvement upon the megastructures from the 1970s.

2006 年，卡尔帕纳一号轨道定居点被提议作为对 1970 年代巨型结构的改进。

They may have finished their first megastructures, and they might be in the process of moving staff between stars, transmitting enormous amounts of information into space, by accident, or on purpose.

它们可能已经建成了他们的第一批巨型结构，可能正处于在恒星之间运输物体，并无意或有意地向太空传输大量信息的过程中。