Official Document - "Up until a few decades ago it seemed very improbable that intelligent life existed anywhere outside of the solar system."

My take is they started to admit it's probable... "Up until a few decades ago it seemed very improbable that intelligent life existed anywhere outside of the solar system." - This is a real declassified document — a July 18, 1963 memorandum from the National Aeronautics and Space Council — also it's actually a fairly sobering policy planning memo from a senior government scientific body asking a reasonable question: if we do encounter alien intelligence, what should U.S. policy be? Source Lin...

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