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"Very inefficient" is an understatement too! I wonder how much energy Visa and Mastercard combined use to process their transactions. Mind you, they probably do orders of magnitude more transactions per second.

I recently had a discussion with a friend about the viability of a distributed/ blockchain alternative to YouTube. Extrapolating BTC inefficiency to a distributed CDN processing TBs and PBs of traffic...

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> "Very inefficient" is an understatement too! I wonder how much energy Visa and Mastercard combined use to process their transactions. Mind you, they probably do orders of magnitude more transactions per second.

There's about 6 orders of magnitude difference in transaction cost. Mastercard/Visa would use ~2W.h per transaction, Bitcoin about 1MW.h.

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