> Another technology that uses a lot of energy is blockchains. I think using public blockchains is almost universally unethical since there are other, better, l

> Another technology that uses a lot of energy is blockchains. I think using public blockchains is almost universally unethical since there are other, better, less harmful options. Part of the harm from blockchains is an absurd amount of energy usage. I'm not filled with confidence in the author after reading this. The absolutely overwhelming majority of blockchain transactions today occur on non-PoW chains which do not consume large amounts of electricity.