I've been seeing all kinds of centralization with POW mining all over due to big mining corporations. What if there was a hard limit to the hashing power per node? I know there were other attempts to battle the centralization problem through POS and other means. If there was a hard limit to hash power acceptable through a node, the hash power would be more distributed and there wouldn't be as much of a financial barrier for those who aren't as high up in the economic food chain. I hope this idea gets heard and possibly considered among the coding community.