Look at the afterlife of LUNA. That tanked trying to support his stablecoin. So, a way was found to undo the crash, sort of.[1] You thought blockchains were immutable? No. Rename old token something else. Create new token called LUNA. Initialize new LUNA with balances from old LUNA as of 7 May 2022, referred to in the hype as the "pre-attack" date.
So what happened? New LUNA crashed. Opened around US$20, now around US$3.
[1] https://docs.terra.money/docs/migration/exchange-migration.h...