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Re:Cambridge Bitcoin Electricity Consumption Index by shawabawa3 on Wednesday February 10, 2021 @10:30AM (#26090444)
Do you have a source for (1)?

I'm pretty sure GPU mining btc is inefficient even with free electricity (depreciation of the PC/GPU will outweigh benefits)

edit: was curious so checked the math

Using a 3060TI GPU (one of the most cost-efficient for performance gpu's available) would generate about $0.0002/day, or take ~5000 years to pay itself off even with free electricity

Re:Cambridge Bitcoin Electricity Consumption Index by Stupulous on Wednesday February 10, 2021 @05:15PM (#26095533)
Doesn't bitcoin compute time go up with computational advances also? If so, any answer greater than a few years can be transposed to infinite time to cover costs.