And I do not understand your difficulty The article entry assumes that Lactantius argues for a flat earth because he argues against the habitability of the Antipodes The argument against the habitability of the Antipodes is not necessarily an argument against the sphericity of the earth Assumptions are unwarranted both as a logical argument and as Wikipedia policy I do not accept the assumption Scholars do not accept the assumption Plenty of medieval scholars believed in a spherical earth but did not believe the Antipodes could be inhabited As far as I know from what I have read Lactantius did in fact argue for a flat earth Why are we not citing a passage of Lactantius that illustrates directly that he advocated a flat earth The cited passages argue no such thing It is non sequitur