Antoni Trenchev, co-founder and managing partner at Nexo, discusses the historic upgrade of Ethereum blockchain, what it means for Bitcoin and the future of �proof of work.� He speaks on Bloomberg Television. -------- Follow Bloomberg for business news & analysis, up-to-the-minute market data, features, profiles and more: http://www.bloomberg.com Connect with us on... Twitter: https://twitter.com/business Facebook: https://www.facebook.com/bloombergbusiness Instagram: https://www.instagram.com/bloombergbusiness/