2. Information increases by a factor of five every five years.

3. Peter Pirolli, cognitive psychologist has studied how people navigate and use information online. People search for information like animals search for food and have predictable patterns. People find, share and synthesize knowledge they have found. People are using the internet information to share health-care information, manage work system, and complete complex tasks. (http://www.apa.org/monitor/2012/03/information.aspx)

4. Foraging theory says animals try to maximize the amount of food that take in during a given amount of time. Birds search through scarce patches to find rich patches of food. Internet sites rich with information are strong forging areas for people. People follow a scent of key words, pictures, and clues to find the information.

5. People synthesize information efficiently in a group.

6. People are more likely to befriend genetically similar people when their environment is stratified. Two factors are critical: nature and nurture and nurture is more prevalent. (http://www.sciencedaily.com/releases/2012/10/121031125518.htm)