"Lets say bitcoin used 1000 TWh/yr worldwide (~15-30x what is estimated to use now). That'd work out to: 100*1000/157,500 ~ 0.63 % Currently its more like 0

"Lets say bitcoin used 1000 TWh/yr worldwide (~15-30x what is estimated to use now). That'd work out to: 100*1000/157,500 ~ 0.63 % Currently its more like 0.02-0.04%. As someone else posted, just christmas lights in the US alone is ~6 TWh/yr (~.004%)." So, THREE ORDERS OF MAGNITUDE are no big deal? Okay.