New blood severs old ties.

For those people who believe no one can truly change I would note that roughly every seven to ten years all the cells in our bodies are replicated but some cells often change internally. We are never entirely the people we once were.

Humans can be just like particles, and in comparison to the endless Universe in size and individual importance, that is exactly what they are.

We are one race with many cultures and we are too biologically similar beyond mere superficial variances to be significantly different. Perhaps if we cared more about each other and less about how each other looked everyone would be far better off. We are the flawed human race.

The Scientific Method, doing it right since the 1600s.