Earlier quoted context omitted.
The whole point of Bitcoin mining is to produce a block , which contains a bunch of transactions. The Bitcoin network dictates that each block's SHA256 hash starts with a certain number of zeroes, so the only way to achieve this is to brute force the block data until you find the "winning" block which hashes to a number of zeroes. Once someone finds a winning block, they're rewarded with a number of Bitcoin. This sub…
> And to add to the "it costs 657.6kWh to process a transaction": energy is used to produce a block, which contains an arbitrarily defined number of transactions. Right now, Bitcoin Core limits each block to 1MB, which works out to about 2k transactions per block. If Bitcoin Core were to increase the limit to say 10MB, the energy used to produce a block doesn't change, but the energy used to process a transaction goe…
Sure, and? You get other benefits, those might not be relevant for you in which case keep using conventional payment networks. But if things like counterparty risk of your payment processor come into your calculations, even $10 dollars a transaction migth be a good deal.