"Joey, when Frank Drake first proposed the Drake equation to estimate probability of ET, he "calculated" 20 to 50,000,000 civilizations. With that margin, yeah, he was taking wild swings! I think recent estimates based on future data about planets…"
"My humility tells me we're not alone. I don't think aliens have visited. Though an academic colleague of mine is firmly in the conspiracy camp that visits have happened but been covered up. I can't manage to get past distrust of those conspiracy…"
Replies