Lévy draws a distinction between shared knowledge, information that is believed to be true and held in common by the entire group, and collective intelligence, the sum total of information held individually by the members of the group that can be accessed in response to a specific question. He explains: “The knowledge of a thinking community is no longer a shared knowledge for it is now impossible for a single human being, or even a group of people, to master all knowledge, all skills. It is fundamentally collective knowledge, impossible to gather together into a single creature.” Only certain things are known by all — the things the community needs to sustain its existence and fulfill its goals. Everything else is known by individuals who are on call to share what they know when the occasion arises. But communities must closely scrutinize any information that is going to become part of their shared knowledge, since misinformation can lead to more and more misconceptions as new insight is read against what the group believes to be core knowledge.