Is extraterrestrial life, it might be better to look for extraterrestrial technology?

Those familiar with space strategy Stellaris probably know that one of the key points before the meeting with some kind of ancient intelligent life is the definition of the trace technology of this civilization. Although the game itself is solid science fiction, a proposal previously described concepts do not seem so far-fetched. At least for the same researchers from the Institute of search for extraterrestrial life (SETI). For example, according to astronomer Jason Wright, the search for traces of advanced technology, ie the so-called thesignature that could be left by ancient extraterrestrial civilizations, is no less important than the search of biosignatures.