There are four Idols – errors of thinking and judgement – according to Francis Bacon’s Novum Organum (1620) which beset human minds. These are Idols of the Tribe – false assertions that the sense of man is the measure of things; Idols of the Cave – idols of the individual man; Idols of the Market Place – formed by the intercourse and association of men with each other, and Idols of the Theatre – stemming from dogmas of philosophies and … wrong laws of demonstration. We wrote a paper showing that these idols are still alive in demography and we think that they are also present in the other scientific fields. Did you put some of them in evidence in your scientific field?