How to Get Critical Mass for a Social Network

After his first company was bought, he wanted to build a better way for groups of people to centralize their decentralized knowledge. His idea: How do you get the best ideas from many different perspectives and see this sort of multi-dimensional object of like any kind of question? He says if I can start with the best writing throughout all of history, and I can figure out how to map these different perspectives together, well, now I've just isolated a bunch of variables.