As the spotlight returns to Bitcoin (BTC), helped by some tweets by a certain mercurial celebrity, the raging debate over its energy use has once again reignited. It centers around one, seemingly clear-cut question: Does Bitcoin use too much energy?The basic contours of the issue are clear. Bitcoin secures its network from a hostile takeover using proof-of-work (PoW), a process … [Read more...] about Green blockchain should work smarter, not harder