NOTE FROM TED: We’ve flagged this talk, which was filmed at a TEDx event, because it appears to fall outside TEDx’s content guidelines. Claims made in this talk only represent the speaker’s personal understanding of UFOs which are not corroborated by scientific evidence. TEDx events are independently organized by volunteers. The guidelines we give organizers are described in more detail here: http://storage.ted.com/tedx/manuals/t...