My theory will be brief, because Hollywood (Company of television montage) like the nasa subliminally enters us the image of the round earth? The earth can be square and yet ordinary citizens will not know the truth, you can not have a truth in your face unless you look for truth, not asking before most people who are ignorant of the case, even if you can prove that the earth is square, round, oval or flat that information will be refuted by such entities with power, but with all feeling and hunch, without evidence in hand or on paper I can tell you that the earth is not round.