Yes, it is a delicate thing to study the human psyche, and I am sure we have much to learn. It seems very hard to quantify feelings, memories, correlations since every person's brain works in different ways, but perhaps this test is the first step. Anyway, I am more interested in the artistic aspect of the cards, and how they were used in pop culture --the game was meant as a way to engage readers with that. Thanks for the comment, though; it is good to see a subject from several points of view!