I've found that explanation to be pretty good, as a matter of fact. The paradox seems to arise because from a psychological effect of "projecting" the directio

I've found that explanation to be pretty good, as a matter of fact. The paradox seems to arise because from a psychological effect of "projecting" the directions with respect to the image "looking" back at you. Once you get people to stay in their reference frame (left, right, top, bottom above) they see their mistake.