No one uses GPUs to mine Bitcoin specifically; GPU mining was on its last legs in 2012 when FPGA mining started up, and by 2014 it was totally dead because ASICs (application-specific integrated circuits, aka custom mining chips) came onto the scene. The GPUs are for altcoins now.

Yeah, that’s what I was getting at. Back during the early days of bitcoin, it was really the only major cryptocurrency. There didn’t yet exist this kind of incentive to waste an entire small country’s worth of energy and resources to mine the cryptocurrencies that exist now.