it also was easy to come to this conclusion which means many other people but me and that commenter easily thought of it . this question isnt remarkable . its just another take on the axiomatic fallacy . this sentence is true . the previous sentence is false . really no need to try to incorporate pinoccio in an ageold question and it would not be a new discovery to do so . it only introduces weak logic that doesnt exist in the original question . <| sep |> Yeah , I ' ve seen it once too . I didn ' t have to reboot to make it go away , though . just put something else on my display for a bit . It freaked me out , not because it was a bug , but because when I backed up it gave me the sensation that there was something behind me even though there wasn ' t .