davidkhalid (25)in #cryptocurrency • 8 years agoThe Twitter CEO Predicts Bitcoin Will Become The World's CurrencyChief Executive Officer (CEO) of Twitter, Jack Dorsey, predicted that bitcoin will replace all the world currencies in…davidkhalid (25)in #introduceyourself • 8 years agoIntroduction Of MyselfIntroduce me @davidkhalid newcomer in steemit, please advice and hint from senior ya, thank you. Hi friends, I want…