 We all believe in non-human intelligence in the sense of intelligent angels. But you have all kinds of folks who were very open to that and some were quite convinced. You mentioned Padre Pio, but all the way back to St. Augustine, St. Jerome both believed in non-human intelligence. They didn't talk about extraterrestrial intelligence in particular because at the time the so-called science of the day didn't allow for it, which was really Aristotle's philosophy and Plato's.