The luckiest nine groups of people:

1. People who started business in the 1980s
2. People who invested in stocks in the 1990s
3. People who worked with computers in 2000
4. People who engaged in e-commerce in 2010
5. People who did food delivery in 2014
6. People who bought houses in 2015
7. People who created self-media in 2016
8. People who sold houses in 2019
9. People who bought gold in 2021
It can be said that as long as you seize one of these opportunities, ordinary people can achieve significant wealth growth, even crossing social classes.