Should read about it if you like stablecoins and you like ETH and you like alts. It's getting extremely popular now because of the way people can stake against it. They also have good DAO concepts which USDT doesn't have by the way. A lot of corporations are already backing it, I have no clue about whether or not they can do it properly but from what it looks like it'll be very popular by next year.
I like ETH but I'm not into stable coins but I see that there's too much attention that's going in for these kind of altcoins. I'm starting to learn more about them because I'm just looking to the most popular stable coins.
both of them are the same, they are part of maker dao.
dai and sai are decentralized stablecoins , usdt tether instead is also a stablecoin as dai or sai coins but is centralized
These make sense, thanks for those brief explanations between dai and sai and why you won't stay on USDT instead.