https://github.com/QiushiWu/qi...

Banks consume huge amount of electricity to operate to achieve the same task. Just think of the airmiles their employees rack up going on holiday. The high rise, air conditioned, always lit offices. Please compare apples to apples.

Ledgers are just a mean of accounting a protocol so to speak. It just so happens that blockchains are just more honest version of our other financial databases. She's unhappy as the ECB adding zeros to their account is a failing strategy. Long live crypto!