Take UFO and Ghosts seriously? No, of course not. The US Navy pilots and thousands of other UFO witnesses are all lying about seeing and tracking UFOs. All the photo, film or videos are either Venus or faked. Spiritual experiences like ghosts or near death experiences, etc. are not real, they are just a useless and random side effect of evolution. Bigfoot is not real. The thousands of experienced hunters, outdoorsmen, rural homeowners, cops, forestry officials, military units, etc. just can't tell the difference between bear and a 9-foot tall humanoid. Especially Native Americans, who have many tribal names for Sasquatch, they are just making up fairy tales to scare their children. If science has not discovered it or verified a phenomenon, it does not exist. As scientist we need to understand that one lab rat study outweighs thousands of "anecdotal" witness accounts. If a rat has not see a UFO, Ghost or Bigfoot and responded to it, then it does not exist. That is why before Issac Newton discovered gravity, people could fly.