Earlier quoted context omitted.
Tether has a very powerful place in the crypto ecosystem - it is the most widely used stablecoin. It was revealed in a court filing that it was not fully backed, it was like 70%, because governments seized some of the funds (according to Tether). This broke a fundamental promise Tether made - that all USDT was fully backed 1 for 1 with USD in bank accounts. To remedy this, Tether now states USDT is backed 1 for 1 wit…
Tether’s total supply didn’t exceed 2B at any point in 2017 or 2018 and it certainly didn’t fluctuate by anywhere close to that, particularly on the down side, during that period. I think either your dates are wrong or you’ve vastly overstated how much Tether Circle “redeemed” (please explain exactly the redemption process you used) over that period.
You don’t do all billions at once, that was in total.