#Tether is the keystone of the whole system, and it is a deeply flawed keystone. Once it collapses, it will be very hard for any other crypto asset to stay valuable.
(Why flawed?: Anyone Seen Tether’s Billions? https://www.bloomberg.com/news/features/2021-10-07/crypto-mystery-where-s-the-69-billion-backing-the-stablecoin-tether)