Ironic if we end up having to choose between economic liberty and conservation.
Unfortunately, proof of work is the only solution I've found to make p2p e-cash work without a trusted third party. Even if I wasn't using it secondarily as a way to allocate the initial
distribution of currency, PoW is fundamental to coordinating the network and preventing double-spending.
If it did grow to consume significant energy, I think it would still be less wasteful than the labour and resource intensive conventional banking activity it would replace. The cost would be an order of magnitude less than the billions in banking fees that pay for all those brick and mortar buildings, skyscrapers and junk mail credit card offers.
Satoshi
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