Lucy Guo has officially dethroned Swift as the world's youngest self-made female billionaire—take a look at her impressive property portfolio.

Lucy Guo, a Carnegie Mellon dropout, has become the world's youngest self-made woman billionaire, surpassing Taylor Swift. Guo's wealth stems from her

Guo, the daughter of Chinese immigrants, grew up in the San Francisco Bay Area and began learning to code while still in middle school.