1. 1971: Elon Musk was born in South Africa.

2. 8 years old: His parents divorced, and Musk lived with his mother.

3. 10 years old: Two years later, he moved to live with his father, but due to personality conflicts, he returned to his mother at the age of 12.

4. 17 years old: To avoid military service, he obtained Canadian citizenship through his mother's birthplace and went to school in Canada.

5. 18 years old: His father found him a stepmother, who also brought a 4-year-old sister.

6. 20 years old: Musk moved to the U.S. to pursue further education at university.

7. 23 years old: Although he did not graduate from college, he started Zip2 with his father's support ($28,000).

8. 24 years old: Zip2 received a $3 million investment, and Musk returned to the University of Pennsylvania, obtaining a J-1 visa.

9. 25 years old: Completed studies at the University of Pennsylvania, then switched to an H1B visa and obtained a U.S. green card.

10. 27 years old: Sold Zip2 for $22 million.

11. 28 years old: Got married to Justine Wilson, whom he met while studying in Canada.

12. 30 years old: Musk's first son was born but unfortunately passed away two months later. That same year, he became a U.S. citizen and founded SpaceX.

13. 32 years old: Musk's second son was born through in vitro fertilization technology.

14. 34 years old: He welcomed triplets again through in vitro fertilization technology.

15. 35 years old: Musk became an investor in Tesla.

16. 40 years old: Tesla successfully went public.

17. 47 years old: Musk learned that his father was cohabiting with his stepsister and had a child, which made him extremely angry, as the stepsister is the daughter of his stepmother.

18. 48 years old: His father and stepsister had another child, and Musk nearly severed ties with his father.

19. 52 years old: Musk's eldest son transitioned to a daughter, changed her surname, and severed ties with Musk. At this time, Musk had 12 children, one of whom passed away, and one severed ties; he still maintains contact with 10 children. That same year, he acquired Twitter and deleted the accounts of his ex-wife and eldest daughter.

20. 54 years old: Fully supported Trump and made successful bets, continuing to write his legendary life.

This is Musk's personal journey full of ups and downs, challenges and successes, characterized by complex family relationships and business achievements, making him one of the most legendary figures in the global tech industry.