Stable coins are coins such as the tether coins (USDT) and the dollar coins (USDC). These are considered to be be stable coins because they are tied into the dollar value. Therefore you may see small fluctuations in the price that may result in changes of possibly one cent, however overall the coins maintain a very similar value to the dollar because they are linked, and hence they are referred to as stable coins.Their is no stable no anywhere, all crypto coins are the same, they are meant to rise and fall so that both crypto developer and investors can enjoy it. I see Bitcoin taking its position anytime, any day. All online stores are accepting bitcoin and other crypto coin and it has little or nothing to do with them.