Which blockchain could become the Ethereum Killer?

When Ethereum burst onto the scene in 2015, this second-generation blockchain technology was to be everything that Bitcoin was not. More secure, more adaptable, more intelligent, and more future-proof than the first generation grandfather of the cryptocurrency revolution.Originally the brainchild of Bitcoin Magazine co-Founder Vitalik Buterin, the concept for Ethereum was born in a 2013 white paper and launched after a two-year development period with some questioning whether the project would l