Are We Observing Extraterrestrial Intelligence Without Realizing It?

Are We Observing Extraterrestrial Intelligence Without Realizing It? | Cadell Last: "Philosophy and the physical sciences have a long and interesting past spanning the entirety of human history. Philosophers have played the role of logically deducing the existence of certain physical phenomena that were untestable. Physical scientists have then either empirically confirmed or refuted the philosophical speculation proposed when the necessary technology and/or method were developed."