It is very hard to believe with the size of the universe that life wouldn’t happen even by accident more than once. I believe the biggest problem has always been distance. Imagine how far our own technology has advanced in the last 18 years, now add 982 and think about how advanced it will be (assuming our species survives that long). With the amount of time that has already passed on the earth it is even concievable to believe the dinosaurs evolved into birds. If that is conceivable why not a portion of those dinosaurs evolving into an intelligent being that then sought refuge underground when that great comet was inbound? All some really fascinating concepts 🧐