Rarely does an erected flag fly alone. An invisible wind moves it, meaning an external force. When the wind blows, flags flutter, dust rises, and laundry dries. Many changes occur in response to one external factor, but we cannot see the cause. Eyes capable of reading invisible external causes can respond to a world of rapid change. We cannot attribute a cause solely by observing a phenomenon; instead, we must recognize a specific pattern across multiple phenomena. The ability to detect hidden commonalities is a form of wisdom. - Joseph’s “just my thoughts”
British anthropologist Robin Dunbar was certain that primate cerebral neocortical capacity determines the number of social relations. He definitively established the limit of human relationships at 100 to 230 people. The average value of 150 people is known as Dunbar's number. In the world of chimpanzees, 30 is the absolute maximum. However, fewer than 12 people in the world can sympathize with me. My best friend is now reduced to 3 or 4. The relationship quantity decreases to the square root value and increases to the square value. Three or four of my best friends will eventually connect with people from all over the world. This is the same principle as when one or two virus-infected people infect the world. Focus on your best friend. - Joseph’s “just my thoughts”