The most stable coin ,have the possibility of collapse?
This question Troubled me for long time,Thanks for answer

The only reason USDT seems "stable" is because it claims to be backed by real USD with a 1:1 ratio. But is this claim true? There has been numerous doubts about this recently. Their lack of public audit is fueling these rumors. Some say that free printing of Tether money (that's not backed by USD) is pumping the BTC price to this level. They even confessed that their relationship with an auditor ha been "dissolved"
https://www.coindesk.com/tether-confirms-relationship-auditor-dissolved/So until they have better and more transparent audit I would stay away from them. Just make BTC as your base assets.
in what scenerio would that make sense? if you believe btc is going up in value, ofc you would park in btc/crypto. usdt is for the times you would like to stay on the sideline. They are equally as risky when you store them on an exchange.
they are like casino tokens which has no value on it's own. but if you can redeem it for not just cash, but also gold and silver, then it doesn't matter how much cash the casino has on hand. If they don't have the cash, you would simply trade them in for
gold and silver and cash them out elsewhere. usdt is not any riskier than any currency. If the exchange goes under or everything stolen, you are not getting paid regardless of what you have stored there.