> pointless busywork just to secure the blockchain Well if it's securing the blockchain it can't be that pointless. Some good arguments here for why "useless"

> pointless busywork just to secure the blockchain Well if it's securing the blockchain it can't be that pointless. Some good arguments here for why "useless" proof-of-work is actually quite useful: http://www.truthcoin.info/blog/pow-cheapest/ http://www.truthcoin.info/blog/pow-cheapest/