Bit 5 doesn't try to explain behaviour, but only classifies statistical differences in test results. It also boils down to a 5-dimensional vector not 5 categor

Bit 5 doesn't try to explain behaviour, but only classifies statistical differences in test results. It also boils down to a 5-dimensional vector not 5 categories of people. If we see each dimension in just 10 bins then that's still 100000 different categories.