Why “vectors” instead of “types”?
Psychology certainly does not want for theories dividing people into types and recommending how those different types should interact. However, real life shows that there is no such thing as clear-cut types. People do not even clearly divide into two genders, to say nothing of character.
Our system replaces types with the concept of vectors. As usual, they vary in direction and magnitude: we all have eight vectors that range in potential from 0% to 100%.