You didn't include the production cost (energy input) to make the paper bills. I can only assume it's negligible but perhaps that should be stated. The mainten

You didn't include the production cost (energy input) to make the paper bills. I can only assume it's negligible but perhaps that should be stated. The maintenance cost of the Tesla, however, is not neglibible. 660 miles will have measurable/accountable tire wear. Most importantly, you didn't account for the utility value of the power. Teslas are charged with power that would otherwise be saved, and would not produce CO2, etc. Whereas my understanding is that BTC are mostly mined with excess power that would just go to waste if not used, eg "surplus" hydro generation. Of course that's not completely the case, but any analysis must be "full lifecycle" to hold any water.