Human Roots

Where do the roots of humanity come from? Time keeps moving forward because the entropy of the universe (i. E., Its disorder) only increases, and there is nothing we can do to reverse this increase. The fact that "entropy always increases" involves the logic that chaotic arrangements of matter are always more common than regular arrangements, and when you change things, it tends to fall into disorder. But the question here is: Why was entropy so low in the past? In other words, why was the universe ordered in the beginning—when a lot of energy was squeezed into a small space?