I start wondering how Bitcoin parity to fiat can be accurate measurably ?
Measured accurately?
![Roll Eyes](https://bitcointalk.org/Smileys/default/rolleyes.gif)
I don't think that having tether is a must. Sure, it does exist and some exchanges are allowing their clients to turn their cryptos into tether so that they will have this idea of trading for USD, without actually doing it, and the exchange can't be pressured for money transmitting licenses and all that crap.
On one hand we could simply trade for fiat. Exchanges around the world are doing it anyway by pairing coins with the current value of their local currencies. They don't use usdt and they don't suse USD, yet they are completely fine. On the other we could implement a new, better tether. There's also the third option available that may seem stupid right now but not in the future. Ignore tether and its new versions and build a closed economy based only on cryptocurrencies.