If you use starsigns and the current alignment of the planets you will get similar results.
A personality framework assigns you a label based on the traits you have.
They’re basically the opposite of each other.
- people born after the start of the school year are a lot older when they go to school. That skews this a lot. You’re larger, stronger, more developed. That gives you a huge advantage. 6 months at that point is 10% of your life, maybe even more
People born during the winter (I think) have more exposure to sunlight after the first few months of being inside/protected.
With just these two influences you can explain quite some traits of star signs
I agree with the other comment that assigning a binary classification to a unimodal distribution is pretty much worthless.
MBTI says a person with "S" sensing abilities has these traits (x,y,z). No predictions, but observations of one's tendencies.