You are right that Summit is overbuilt if it was going to be used just for raw crypto mining hashpower. However, even so, it would be quite profitable... The la

You are right that Summit is overbuilt if it was going to be used just for raw crypto mining hashpower. However, even so, it would be quite profitable... The last double spend attack on BTG stole ~$20M. There is no reason to think it couldn't steal $50M or so. Repeat the attack on a handful of other cryptocurrencies and you would quickly recoup the cost of Summit ($200M)...