Unfortunately it seems I was wrong. User mrb gives useful information in this post (https://news.ycombinator.com/item?id=5330343), linking to (http://blog.zorinaq.com/?e=14)
Someone somewhere linked to a bitcoin information page showing how much computing power is in the blockchain, and it's an amazing amount. More than all the top500 combined. (But remembering that we're comparing non-similar computing units.)
Unfortunately it seems I was wrong. User mrb gives useful information in this post (https://news.ycombinator.com/item?id=5330343), linking to (http://blog.zorinaq.com/?e=14)
Someone somewhere linked to a bitcoin information page showing how much computing power is in the blockchain, and it's an amazing amount. More than all the top500 combined. (But remembering that we're comparing non-similar computing units.)