Tether USD not dollar and who cares it don't need to be dollar tether is tether.
What we see most utility blockchain is tron...when ever i want to send or receive USDT most blockchains are out of service usually i can use either eth or tron but eth fees way too expensive.
Other blockchains have a lot more work to do to keep up with tron.
But new reserve currency can be from private sector like usdt founders it don't need to be some goverment i accepted If it's tether.
And when tether become one of the most common payment currency in the world and not many people has it then purache power of usdt will be huge.
I guess people start borrowing USDT from me and other USDT holders and the good thing is that If they don't pay back themselfes the money can be frozen from their accounts so no hiding away me indont need worry about my tether will grow bigger and bigger in my wallet so i can give out more loans and loans always return back to my wallet
Tron and tether will be new financial power over the next years a lot Capital moves there and If you are in this you will be wealthy Im sure that blackrock want to get into tron blockchain soon maybe tron etf