> If we had argued about energy requirements in late 60s we would have never reached Moon or built the LHC.
This is not even close to true.
The energy requirements for the Saturn program and for the LHC were calculated and understood in precise detail, and did not depend on any assumption that there would be new energy sources in the future.
The study that raised concerns regarding Bitcoin's energy usage also suggests the amount of electricity consumed every year by always-on but inactive home devices in the US alone could power the entire Bitcoin network for a year[1].
I am not trying to undermine Bitcoin's energy problem. We need more discussion and awareness on this than just labeling "Bitcoin bad" because it consumes more energy.
