マイナーは７０００ドル切ると儲けゼロで損失がでるらしい
https://www.bloomberg.com/news/articles/2018-01-10/bitcoin-can-drop-50-and-china-s-miners-will-still-make-money
Miners break even at $6,925 at China’s top power price: BNEF

やばくね？　どうなるんだ？