Assuming this life is not techological civilizations that were hiding in plain sight, such a discovery would be bad news for us because it put us before the gre

Assuming this life is not techological civilizations that were hiding in plain sight, such a discovery would be bad news for us because it put us before the great filter. cf http://www.technologyreview.com/article/409936/where-are-they/ http://www.technologyreview.com/article/409936/where-are-the...