jm 7£ß/ê/9×$3©m0J` *8æä¼+sVÅL¢It doesn't. It's just a matter of time when it will be replaced by POS or something even more energy efficient. We are at the end of the "steam engine" era - POW.
https://whatsonchain.com/tx/a68b3d8115055c61b70bb85183b3e23de1c0f7ad3339039592780aa6b18fb1f3