True Sidereal astrology
Most Human Design calculations are based on Tropical astrology. This is the most popular system in the Western world. However, many people aren't aware that it does not actually represent the visible sky. Instead, it is based on the equinoxes.
A few hundreds years BC, the constellations in the sky matched with the seasons. During this time, the Sun was always entering Aries during the Spring Equinox. However, the stars have slowly changed location relative to the Earth's seasons.
With technology, we can now incorporate the visible sky into our charts and calculate with more accuracy.
A new experiment has emerged with people worldwide, called Cosmic Human Design™, using this technology to calculate a Human Design chart based on True Sidereal astrology instead of Tropical. I am one of them and the journey has been profound. That's why I want to offer this experiment to anyone who feels drawn to it.