## Singularity Theorem

A theorem (a mathematically proven fact) which shows that a singularity must exist under certain circumstances. For example, physicists have shown that the Universe must have begun with a singularity.

## Inspiration

In the 1st year of the period Chih-ho, the 5th moon, the day chi-ch'ou, a guest star appeared...

Yang Wei-T'e, Imperial Astronomer of the Sung Dynasty, 1054 A.D.