Stellar is a protocol for transacting in whatever currencies you want. The dollar isn't special; it's just another fiat currency. Everything in the Stellar net

Stellar is a protocol for transacting in whatever currencies you want. The dollar isn't special; it's just another fiat currency. Everything in the Stellar network (except for the stellar cryptocurrency) is credit--an IOU. Which how all fiat currencies work anyway. If I owe you $50 and I write you a check for $50, you consider the debt paid, even though all I did was tell my bank to owe you the $50. When you deposit the check, the money doesn't move; the bank's ledger just gets updated. If there isn't a currency (fiat or otherwise) we can agree on, we can use STR, the cryptocurrency of the Stellar network. Unlike other currencies, STRs don't require trust or gateways. As the utility of the Stellar network grows, the value of STR increases.