Only Connectome

As a rather precise analogy, knowing the distribution of cell phones in the United States might tell you this much (pinchy fingers) about what Americans are saying to one another. A complete list of every phone’s contact history (eg, who is calling who, and when, and for how long) would tell you this much (hands a foot apart) about what Americans are saying. But actually recording all of the conversations would tell you this much (arms stretched as wide as possible) about what Americans are saying.