Except that a SETI-type attack such as the one described in Hoyle’s A for Andromeda (mentioned in the link provided by turchin above) would not necessarily target us specifically; it could be launched by aliens with no knowledge of our existence.
Except that a SETI-type attack such as the one described in Hoyle’s A for Andromeda (mentioned in the link provided by turchin above) would not necessarily target us specifically; it could be launched by aliens with no knowledge of our existence.