Interest in bitcoin and other cryptocurrencies may be surging, but central banks don’t want to be left behind by financial innovation. In fact, more than 80% are examining how to launch digital versions of their own currencies. CNBC’s Joumanna Bercetche takes a look at why these cautious institutions may soon be launching a revolution in how we think about money. ----- Subscribe to us on YouTube: http://cnb.cx/2wuoARM Subscribe to CNBC International TV on YouTube: https://cnb.cx/2NGytpz Like our Facebook page: https://www.facebook.com/cnbcinternational Follow us on Instagram: https://www.instagram.com/cnbcinternational/ Follow us on Twitter: https://twitter.com/CNBCi #CNBC #CentralBanks #Money