I still think Ufo's are craft that pass between dimensions, since there is no life to be found on planets on our solar system, why not in the spirit world? Makes sense to moi.As to why only SOME people see UFOs or experience contact with aliens: It was told to me that it goes by FAMILY BLOODLINES. Apparently the space aliens are contacting only ppl who can act as interpreters for them between humans and aliens. It is like having a talent for something. Some ppl have it and some ppl don't. It doesn't mean that anyone is better than anyone else.