re: do you believe in bigfoot, UFO's, or ghosts/demonic spirits?

People are seeing some kind of UFO's. They probably aren't alien. They're just unidentified.

Ghosts are just figments of an overactive imagination and people's innate fear of death. If ghosts were real then there would be more than 0 substantiated observations. Given the amount of people who have died, there would be ghosts literally everywhere.

Bigfoot is blurry. Seriously though, it is not a farfetched idea that there are undiscovered species, although this particular one is pretty unlikely at this point. Species like big foot have existed in the past though.