Most Fiat currency and transactions are electronic, so they cost infinitesimal amounts of energy to ‘coin’ and transactions are just simple addition and subtraction. Conversely, bitcoin cost a relatively vast amount of energy to mine, are extremely bulky to store compared to a fairly compact numeric value, and also can cost a huge amount of energy per transaction since every transaction is highly complex and is replicated across the entire network. I can’t put numbers on that, but bitcoin is horrendously complex, computationally costly and energy costly across all the aspects of its operation compared to fiat currency electronic transactions.
Physical fiat currency might be a different story, but bitcoin doesn’t address the problem of physical money so it’s not really relevant.
Physical fiat currency might be a different story, but bitcoin doesn’t address the problem of physical money so it’s not really relevant.