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by whalesalad
826 days ago
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crypto in and of itself is a really cool and valuable tool. the hype bubble around it and subsequent power/environmental consequences are not good - but the tech is cool and should be appreciated. blockchain is also a great tool for the right usecases (distributed ledger) |
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The energy consumption is not the result of anything, it is a fundamental design element. [1] To reach a meaningful consensus, you have to give all participating users equal or at least similar voting power. But Bitcoin does not want a central database of users which opens the door for Sybil attacks - you can just invent an essentially unlimited number of users out of thin air and have them vote the way you want. The solution to this problem in case of Bitcoin is to tie votes to computing resources for calculating hashes. While you can invent users out of thin, you can not invent computing power out of thin air. This gives each user voting power in proportion to the amount of money they are willing to invest in computing resources. Not really equal voting power for all users but close enough in practice. If miners would not burn enormous amounts of energy, anyone could come along and influence or alter the transaction history or just mine empty blocks and with that block all transactions.
[1] For Bitcoin and similar proof of work systems, there are alternatives.