Selon une étude de Cambridge:
“Bitcoin is literally anti-efficient,” David Gerard, author of Attack of the 50 Foot Blockchain, explained. “So more efficient mining hardware won’t help – it’ll just be competing against other efficient mining hardware. “This means that Bitcoin’s energy use, and hence its CO2 production, only spirals outwards. “It’s very bad that all this energy is being literally wasted in a lottery.”
Peut-être pas un bon rapport coûts/bénéfices.