@icedquinn @lain And when they actually compare it with something, it's usually a bad comparison. Proof of work energy usage does not have the same function as the electricity involved in VISA purchases. It's equivalent is the energy usage of all the security measures taken by the system to protect against the equivalent risks on the crypto side; double spending, counterfeiting, etc... And that also includes the energy cost of the explicit threat of force behind those measures: police, military, judiciary, etc.