Reddit Place is really cool. Place, Hacker News, Reddit and other sites are like global Ouija boards that indicate what is currently interesting to the community mind. Wikipedia reflects what the community thinks is true about a particular subject. The item is fuzzy when it first comes to the attention of global mind but then gradually comes into focus.

Hacker News and Wikipedia are not any better if we add more computing power.

Ethereum is not like that. It requires bit accuracy since it deals with money and contracts. Ethereum would be have a lot more utility with more computing power.