So let's do the rough math and figure out the comparison 300k per day is around 100 million transactions per year, three orders of magnitude less than Visa. B

So let's do the rough math and figure out the comparison 300k per day is around 100 million transactions per year, three orders of magnitude less than Visa. BTC uses 110 terawatt hours per year right now[0], which is 396,000,000 gigajoules, a three order of magnitude difference in the other direction. Assuming everything scales nicely, if Bitcoin were the size of visa it would use ~6 orders of magnitude more energy. OK, so that is way worse than I thought. I'm still not sold on the idea that it's a bad thing, but it's nice to put numbers to the situation. [0] https://www.google.com/amp/s/hbr.org/amp/2021/05/how-much-energy-does-bitcoin-actually-consume https://www.google.com/amp/s/hbr.org/amp/2021/05/how-much-en...