I think this would be more beneficial if we thought of it as distributed computing, rather than just cryptocurrency mining. Look at projects like BOINC, and ima

I think this would be more beneficial if we thought of it as distributed computing, rather than just cryptocurrency mining. Look at projects like BOINC, and imagine for a moment that those tasks could run in a web browser without slowing things down to a crawl. Sure it's less efficient and the tasks need to be broken down into much smaller chunks, but at least this way your spare CPU power could be auctioned off to some more useful purpose. What if instead of an ad space, you're running protein folding simulations, or rendering frames for a small art studio's film project? I'd gladly donate my spare CPU cycles for those kinds of projects on purpose. I think there's a market for this kind of thing, and I'd like to see more experimentation.