Looking back at the black swan events in the history of the cryptocurrency circle, how many have you experienced?

1: The Mentougou incident in February 2014, Bitcoin plummeted 80%

2: The September 4 incident in 2017, the market value evaporated 80%

3: The incident on March 12, 2020, Bitcoin fell to $3,800, and Ethereum fell to $80.

4: The incident on May 19, 2021, 600,000 contracts were instantly liquidated

5: The Luna black swan incident and the FTX thunderstorm incident in 2022