Sure Bitcoin or in fact pretty much any crypto has the ability to become an internationally recognised currency. It just needs people to understand it, for it to be stable, reliable and easy to exchange. Will we see it tomorrow? No. But one day in the near future... its a real possibility indeed
Right. In the world of crypto currency, bitcoin is already widely recognised as the universal currency and globally used as payments to complete the transaction as long as theres a store that are accepting Bitcoin. However every countrys currency will remain as is but can transact bitcoin for exchange or vice versa