SETI, or the Search for Extraterrestrial Intelligence, had begun its 70-plus year life.
One study literally calculated that the volume of the galaxy that SETI has scanned so far
Even back in the early 60s, at the start of SETI, some of its scientists were already exploring radical alternative possibilities,
One may recall a relevant scene in Carl Sagan's classic novel Contact, which follows SETI astronomer, Ellie Arroway,