The whole financial system actually has some usefulness: you can pay for things with it. Anywhere in the world. Without paying $30 in fees, without waiting for 3 days to clear. It's also not likely to run on 60% coal.
Since bitcoin zealots have moved to pretending that it's a "store of value", you can compare Bitcoin to the energy used to secure the gold in the world. Hint: it's much more worse.
Not only that, but if you look at the energy usage per transaction, bitcoin is probably many orders of magnitude more expensive than the financial system
Since bitcoin zealots have moved to pretending that it's a "store of value", you can compare Bitcoin to the energy used to secure the gold in the world. Hint: it's much more worse.