Why do bigoted old men think that the human understanding of space/physics

[John]

etc is final ? Why do bigoted old men think that the human understanding of space/physics etc is final ? I mean you have people like GEOFG and Ozzie who think they know it all! So basically if they have not seen it ?(UFO'S) they do not exist. Moreover these sorts of commentators have done little in the way of actual research regarding the existance of UFO'S they simply make ignorant statements based on the limited human understanding of space and Physics...I suggest talking to STANTON FREIDMAN, STEVEN GREER, NICK POPE, DON BERLINER and/or any other highly credible researchers/scientists before making anymore ignorant comments without thorough research on the topic..Simply stating you have not seen one does not mean they have not been here.....Why would so many ex-military, intelligence and NASA employees be prepared to testify before congress regarding what they have seen? What have they got to gain ?except ridicule from bigoted know all's