In The Way of Tarot, Alejandro Jodorowsky points out that the second half of the Tarot de Marseille trump-card series - both in its whole numbers and in its factored integers - progresses by addition of the Roman numerals with no subtraction needed (e.g. while the Devil is 10 + 5 [or X+V] = 15, … Continue reading The Three-Card Quintessence: A New Twist on an Old Idea