Whatever you believe or disbelieve; this is a very compelling talk. I don't think such a thing is real, yet there is a part of me that would like it to be so. Because of this, I enjoyed watching the talk. Just because I remain sceptical, does not mean I disrespect the believers. I don't and will continue to listen to such things. Maybe one day, there will be stronger evidence because it is not completely wrong to believe that we may have been visited or are visited and watched. Watch and enjoy.